This change adds OpenSSL 3.5.5 from upstream [1].

The 3.5.5 artifact was been verified via PGP key [2] and by SHA256 checksum [3].

This is a security release, but also contains several bugfixes. All of
the CVE-worthy issues have already been addressed on the target
branch(es), so the net-result is that this is a bugfix release.

More information about the release (from a high level) can be found in
the release notes [4].

MFC after:	1 week

1. https://github.com/openssl/openssl/releases/download/openssl-3.5.5/openssl-3.5.5.tar.gz
2. https://github.com/openssl/openssl/releases/download/openssl-3.5.5/openssl-3.5.5.tar.gz.asc
3. https://github.com/openssl/openssl/releases/download/openssl-3.5.5/openssl-3.5.5.tar.gz.sha256
4. https://github.com/openssl/openssl/blob/openssl-3.5.5/NEWS.md

Merge commit '808413da28df9fb93e1f304e6016b15e660f54c8'

Approved by:	philip (mentor)
Sponsored by:	Alpha-Omega Beach Cleaning Project
Sponsored by:	The FreeBSD Foundation

This release incorporates the following bug fixes and mitigations:
- Fixed possible denial of service in X.509 name checks ([CVE-2024-6119])
- Fixed possible buffer overread in SSL_select_next_proto() ([CVE-2024-5535])

Release notes can be found at:
https://openssl-library.org/news/openssl-3.0-notes/index.html

Co-authored-by:	gordon
MFC after:	1 week
Differential Revision:	https://reviews.freebsd.org/D46602

Merge commit '108164cf95d9594884c2dcccba2691335e6f221b'

Migrate to OpenSSL 3.0 in advance of FreeBSD 14.0.  OpenSSL 1.1.1 (the
version we were previously using) will be EOL as of 2023-09-11.

Most of the base system has already been updated for a seamless switch
to OpenSSL 3.0.  For many components we've added
`-DOPENSSL_API_COMPAT=0x10100000L` to CFLAGS to specify the API version,
which avoids deprecation warnings from OpenSSL 3.0.  Changes have also
been made to avoid OpenSSL APIs that were already deprecated in OpenSSL
1.1.1.  The process of updating to contemporary APIs can continue after
this merge.

Additional changes are still required for libarchive and Kerberos-
related libraries or tools; workarounds will immediately follow this
commit.  Fixes are in progress in the upstream projects and will be
incorporated when those are next updated.

There are some performance regressions in benchmarks (certain tests in
`openssl speed`) and in some OpenSSL consumers in ports (e.g.  haproxy).
Investigation will continue for these.

Netflix's testing showed no functional regression and a rather small,
albeit statistically significant, increase in CPU consumption with
OpenSSL 3.0.

Thanks to ngie@ and des@ for updating base system components, to
antoine@ and bofh@ for ports exp-runs and port fixes/workarounds, and to
Netflix and everyone who tested prior to commit or contributed to this
update in other ways.

PR:		271615
PR:		271656 [exp-run]
Relnotes:	Yes
Sponsored by:	The FreeBSD Foundation

Merge commit '56eae1b760adf10835560a9ee595549a1f10410f'

Note it does not update build infrastructure.