mkosi: update mkosi commit reference to 5a476a92deca8ad54869e5d416217aa1bb137b25

mkosi: update mkosi commit reference to 5a476a92deca8ad54869e5d416217aa1bb137b25

* 5a476a92de Use Path.relative_to instead of Path.parts
* 03f41faf9f Update doc for mkosi ssh to mention sd v256 sshd-vsock
* e054976d18 Rewrite note on fw deps of kernel modules in manpage
* a046243a50 Add python3-pefile to fedora tools conf
* 0bab54087e Fix truthy condition
* 01c38544b2 code review
* 563dca41da code review
* 6074d14c0e code review
* 7e842db3b1 Don't discard ordering of include/exclude entries in KernelModules=
* 0047b64785 build(deps): bump github/codeql-action from 4.31.2 to 4.31.6
* f13325bc4b build(deps): bump actions/checkout from 5.0.0 to 6.0.0
* 9ac31d1795 Add zram and nfnetlink to default initrd
* 4bdb47b6da verity: copy signing certificate to /usr/lib/verity.d/
* 8865afde9e Improve manpage output using pandoc lua filter (#4005)
* a425313c58 Pass environment to systemd-sysusers invocation
* 23f09d5de7 Make Ruff check for dangling whitespace
* abeed73d13 qemu: Add missing sandbox
* a05872e523 Ssh=yes maps to Ssh=always, update the manpage
* 79489534ca Warn of mkosi's sshd lacking support in distros' SElinux policy
* 696f99da43 Manpage: Update supported output formats
* 21675c4822 Silence swtpm SHA1 signature deprecation warning
* df53510982 DOC: update Ssh= to note sd-v256+ already generates sshd-vsock
* 50ccef7926 Configure default tools tree with ToolsTree=yes
* 0b701c690d opensuse: do not install openSUSE-release for Leap >= 16.0
* 4bababf421 opensuse: fix mirror URL for Leap >= 16.0
* c43123398c config.py: add config_default_proxy_exclude()
* 07a0a2be67 installer: Only mount configured state subdirs into sandbox
* d5efbf6f8c build(deps): bump github/codeql-action from 3.30.5 to 4.31.2
* 2912ed20d5 PTY forward fixes
* 66dab75259 sandbox: Drop all capabilities that don't make sense in userns
* 8fe5df4400 Respect SYSTEMD_TINT_BACKGROUND and SYSTEMD_ADJUST_TERMINAL_TITLE
* b9d208789d log: Drop konsole hack
* 7fa6eac65c Clarify that mkosi.images is not picked up in mkosi.conf.d
* 08a0f768dd vmspawn: Support BindUser=
* c7c3eaee4e mkosi-vm: Enable universe repository for ubuntu in mkosi-vm
* 688e77f1a8 vmspawn: Use --grow-image
* c47b7fe57b arch: Switch to the newly established fastly mirror
* 7db8f2cda3 Match compressed pacman packages too
* e3b3b93c50 Prevent using Overlay=yes with Format=portable
* 83a25324b3 Make sure apt sources are installed when BaseTrees= is in the mix
* f6fa2fd6a0 test: add unit tests for parents_below() utility function
* 1eafbd8d03 Don't print newlines in stash_terminal_title()
* bbaf92b50e Don't print newline after ansi sequences
* d1b84f5fb3 Look for .sdmagic before we consider a PE binary a UKI/addon
* b4efdbf14e Treat /opt the same as /usr for the sandbox
* 71ffced0f1 Rework PACKAGE_GLOBS to be a PackageManager classmethod
* 29605c2757 Various SPDX and whitespace fixes