Restrict setuptools_scm to <8

[JHolba]

version 8 causes issues with ert's version number variable

Pre review checklist

• Read through the code changes carefully after finishing work
• Make sure tests pass locally (after every commit!)
• Prepare changes in small commits for more convenient review (optional)
• PR title captures the intent of the changes, and is fitting for release notes.
• Updated documentation
• Ensured that unit tests are added for all new behavior (See
  Ground Rules),
  and changes to existing code have good test coverage.

Pre merge checklist

• Added appropriate release note label
• Commit history is consistent and clean, in line with the contribution guidelines.

[xjules]

🚀

[codecov-commenter]

Codecov Report

Merging #6124 (77315b2) into main (c1ab4e6) will not change coverage.
Report is 1 commits behind head on main.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main    #6124   +/-   ##
=======================================
  Coverage   82.48%   82.48%           
=======================================
  Files         350      350           
  Lines       21442    21442           
  Branches      834      834           
=======================================
  Hits        17687    17687           
  Misses       3457     3457           
  Partials      298      298           

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[oyvindeide]

I closed this as it will be fixed upstream in a few minutes