ci: strict warnings the default

ci: strict warnings the default

Make building with --strict-warnings the default for most builds.
Move this option to immediately after the ./config command so its presence
is clearer.

Reviewed-by: Tom Cosgrove <tom.cosgrove@arm.com>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/27204)