Bazel 8 support

[nettle]

Why:
Bazel 8 is actual version, we have to support it

What:
Add support Bazel 8

Addresses:
#108

[nettle]

Hi @furtib, @Szelethus,
I've just briefly added support for Bazel 8, but tested only test/unit/legacy
I hope it should be about updating tests to add load("@rules_cc//cc:defs.bzl", "cc_binary", "cc_library")

[furtib]

This seems like a proof-of-concept patch to me. (The 5th in this series: #116, #140, #174, #199)

Hard-coding the shebang is certainly an option we have yet to explore.

For me (not using mise), all tests are passing, even the per_file = True in yaml-cpp.
(tested with: bazel 6.5, 7.5, 8.5)
For the external tests, we already have a patch (#159)

Do note, however:

• The shebang will use the system version of Python, not the one provided by rules_python
  To verify this claim, try:
  (The script hides the Python interpreter present on the system, forcing bazel to use the one provided by rules_python)

mv $(which python3) $(which python3).dis; bazel build //test/unit/legacy:codechecker_pass; mv $(which python3.dis) $(echo $(which python3.dis) | sed 's/\.dis$//')

(If we actually did use the rules_python toolchain, the test would pass)

[nettle]

The shebang will use the system version of Python, not the one provided by rules_python

Yes, this is actually truth.