perf: delay git and uname commands in hook scripts until needed

[scop]

Closes # (issue)

:zap: Summary

Avoid running git and uname commands in scripts until their output is actually needed.

I suggest reviewing without showing whitespace changes due to changes in indentation.

:ballot_box_with_check: Checklist

• [ ] Check locally
• [ ] Add tests
• [ ] Add documentation

[mrexox]

Thank you! This makes sense