resize-fs: Put minimal ext4 size in the same ballpark as the other filesystems

TEST-46-HOMED fails on ext4 because the filesystem is deemed to small
for activation by cryptsetup. Let's bump the minimal filesystem size for
ext4 a bit to be in the same ballpark as ext4 and btrfs to avoid weird
errors due to impossibly small filesystems.

Also use U64_MB while we're touching this.

TEST-54-CREDS: Specify SMBIOS creds via corresponding mkosi option

This allows mkosi to combine fstab.extra with its own fstab.extra so
that it doesn't override the one we pass for the test.

Merge pull request #33535 from neighbourhoodie/tests/dns-cache

Tests for DnsCache functions

Merge pull request #33534 from neighbourhoodie/tests/dns-query

Tests for DnsQuery functions

core: clean up Set/LoadCredential= parsers

Make logging consistent, plus introduce helper function
for adding creds to ExecContext.set_credential too.

mkosi: Bump device timeout even more

I still manage to hit it in some cases so let's bump again.

Merge pull request #33533 from neighbourhoodie/tests/dns-synthesize

resolved: tests for dns_synthesize_family() and dns_synthesize_protocol()

resolved: tests for dns_synthesize_answer()

sd-dhcp-server: persist hardware addresses in leases

resolved: tests for dns_query_string()

resolved: tests for dns_query_go(); multiple search domains for dns_query_candidate_notify()

resolved: refactor environment management in dns_query_go() tests

resolved: tests for dns_query_go() when configured with search domains

resolved: tests for dns_query_go() when no scopes are available

resolved: tests for dns_query_go() using a bypass query

resolved: tests for dns_query_go() -- with and without network link

resolved: tests for dns_query_process_cname_one(); no match, DNAME, utf-8 handling

resolved: tests for dns_query_process_cname_many()

resolved: tests for common usage of dns_query_process_cname_one()

resolved: tests for dns_query_make_auxiliary()

resolved: tests for dns_query_new()

resolved: tests for dns_cache_lookup() clamping the TTL

resolved: tests for dns_cache_put() for  NXDOMAIN with no SOA

resolved: test that pseudo classes and types are not cached

resolves: tests for dns_cache_prune()

resolved: tests for dns_cache_check_conflicts()

resolved: tests for dns_cache_export_shared_to_packet()

resolved: tests for dns_cache_lookup(); mDNS and multiple matching entries

resolved: tests for dns_cache_lookup() returning the most recent input

resolved: tests for dns_cache_dump()

resolved: test cache misses

resolved: tests for dns_cache_lookup() for NXDOMAIN

resolved: first test for dns_cache_lookup()

resolved: tests for dns_cache_dump_to_json()

resolved: check that adding an expired response removes cache entry

resolved: tests for dns_cache_put(); CNAME success and name error

resolved: tests for dns_cache_put() with non-matching class, type, name

resolved: refactor DNS answer construction for cache tests

resolved: test for dns_cache_put() with empty answer

resolved: tests for dns_cache_put() with different RCODEs

resolved: tests for dns_cache_put(); successful A query

Co-Authored-By: jan@neighbourhood.ie

Merge pull request #33531 from neighbourhoodie/tests/dns-zone

resolved: tests for dns_zone_lookup()

resolved: tests for dns_zone_remove_rrs_by_key()

resolved: tests for dns_zone_remove_rr()

resolved: tests for dns_zone_put()

Merge pull request #33530 from neighbourhoodie/tests/dns-search-domain

resolved: tests for dns_search_domain_find()

resolved: tests for search domain marking and unlinking

resolved: extract function for checking search domains

resolved: tests for dns_search_domain_unlink()

resolved: tests for dns_search_domain_new()

Merge pull request #33529 from neighbourhoodie/tests/dns-link

Tests for DNS Link functions

Merge pull request #33528 from neighbourhoodie/tests/dns-answer

resolved: tests for dns_answer_order_by_scope()

resolved: tests for dns_answer_has_dname_for_cname()

resolved: tests for dns_answer_dump()

resolved: tests for dns_answer_{copy,move}_by_key()

resolved: tests for dns_answer_remove_by_answer_keys()

resolved: tests for dns_answer_remove_by_{key,rr}()

resolved: tests for dns_answer_merge() and dns_answer_extend()

resolved: tests for dns_answer_find_soa()

resolved: tests for dns_answer_add(), dns_answer_match_key()

Merge pull request #33526 from neighbourhoodie/tests/dns-question

resolved: tests for dns_question_merge()

resolved: tests for dns_question_first_name()

resolved: tests for dns_question_dump()

resolved: tests for dns_question_cname_redirect()

resolved: tests for dns_question_is_equal()

resolved: tests for dns_question_is_valid_for_query()

resolved: tests for dns_question_matches_cname_or_dname()

resolved: tests for dns_question_matches_rr()

resolved: tests for dns_question_new_service()

resolved: tests for dns_question_new_reverse()

resolved: tests for dns_question_new_address()

resolved: tests for dns_question_add()

Merge pull request #33525 from neighbourhoodie/tests/dns-rr

resolved: tests for dns_resource_record_source(), dns_resource_record_is_synthetic(), dns_resource_record_signer(), dns_resource_record_is_signer()

resolved: tests for dns_resource_record_to_wire_format()

Note this function does not produce compressed domain names in the RDATA
when serializing the RR.

resolved: tests for dns_resource_record_to_string()

resolved: tests for dns_resource_key_{to,from}_json()

This test doesn't check the generated JSON data in detail, it simply
tests that round-tripping an RR key through the JSON representation
preserves its data.

resolved: tests for dns_resource_record_clamp_ttl()

resolved: tests for dns_resource_record_equal(); LOC records

resolved: tests for dns_resource_record_equal(); SVCB records

resolved: tests for dns_resource_record_equal(); RRSIG records

resolved: tests for dns_resource_record_equal(); NAPTR records

resolved: tests for dns_resource_record_equal(); SRV records

resolved: tests for dns_resource_record_equal(); TXT records

resolved: tests for dns_resource_record_equal(); DNAME records

resolved: tests for dns_resource_record_equal(); MX records

resolved: tests for dns_resource_record_equal(); HINFO records

resolved: tests for dns_resource_record_equal(); PTR records

resolved: tests for dns_resource_record_equal(); SOA records

resolved: tests for dns_resource_record_equal(); CNAME records

resolved: tests for dns_resource_record_equal(); NS records

resolved: tests for dns_resource_record_equal(); A and AAAA records

resolved: tests for dns_resource_record_equal(); general cases

These tests cover comparisons between RR objects that are not class- or
type-specific, i.e. they don't check any of the RDATA fields.

resolved: tests for dns_resource_record_new_address(), dns_resource_record_new_reverse()

resolved: tests for dns_resource_key_reduce()