python3: bump to 3.14.3

python3: bump to 3.14.3

Major version bump from 3.13.9 to 3.14.3.

Highlights of Python 3.14:
- PEP 649: Deferred evaluation of annotations
- PEP 750: Template string literals (t-strings)
- PEP 758: Exception syntax simplification (no brackets needed)
- PEP 765: Restrict control flow in finally blocks
- PEP 779: Official free-threaded mode support
- PEP 784: Zstandard compression module
- UUID versions 6-8 support with faster generation
- Formally verified HMAC implementation
- Experimental JIT compiler support
- Tail-call interpreter option for performance

Full release notes:
https://www.python.org/downloads/release/python-3143/

Dropped 100-test_hashlib-better-handle-support-for-SHA3.patch (upstreamed)
Adapted 027-fix-host-build-libressl.patch (for
X509_VERIFY_PARAM_get_hostflags() )

Refreshed other patches.

Signed-off-by: Alexandru Ardelean <redacted>