add support for statically linking Bazel

[edmondac]

Static Bazel changes cherry-picked from #2262

[Flamefire]

Tested this and seems to work. Another approach might be to use the (recently created) upstream patch: https://github.com/bazelbuild/bazel/pull/12651/files
Maybe using --action_env=LD_LIBRARY_PATH to the build process of the dependency would also work. Testing that now so we at least know our options.
Edit: No doesn't work. So either patch or this.

[Flamefire]

Currently testing the official patch. Is there a preference for when there is a known patch for the next version but many versions require the patch? I.e. still do the workaround in the EasyBlock or add the patch to prior ECs?
Note that the change in this PR is opt-in so ECs would need to be changed too.

[boegel]

superseded by #2285 (at least, once the static linking is also done opt-in there like it is here)