Remove setuptools_scm workarounds

[pjonsson]

These look like things that are masking
issues with packaging.

Coincidentally, this also seems to
reduce the "every file imports everything
else" that you notice when type checking
a single file.

---

📚 Documentation preview 📚: https://datacube-explorer--775.org.readthedocs.build/en/775/

[pjonsson]

I think these try-except are workarounds for not running an installed package. The docker image in CI is tested with installed packages*, and uv run pytest installs the package first, so this shouldn't be required any more.

*) The CI kept finding cubedash in . instead of using the installed version, so I changed import-mode of pytest, and pointed it to the integration_tests directory. I suspect these would be non-issues with a source-layout.

[omad]

I've been thinking we should switch to a source-layout too. I think it's a more rigorous structure, with the only drawback being you can run python from the repo base and have it find the package source.

I think the days are long (loooong) past where that's a useful thing to want to do.

[omad]

I was caught out recently with this repo having a docker/ directory, and it breaking import docker. :-(

[codecov]

Codecov Report

❌ Patch coverage is 0% with 9 lines in your changes missing coverage. Please review.
✅ Project coverage is 0.00%. Comparing base (01d163f) to head (ad3ea87).

Files with missing lines	Patch %	Lines
cubedash/summary/_stores.py	0.00%	6 Missing ⚠️
cubedash/__init__.py	0.00%	1 Missing ⚠️
cubedash/_pages.py	0.00%	1 Missing ⚠️
cubedash/run.py	0.00%	1 Missing ⚠️

❌ Your project check has failed because the head coverage (0.00%) is below the target coverage (80.00%). You can increase the head coverage or adjust the target coverage.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #775       +/-   ##
===========================================
- Coverage    84.72%   0.00%   -84.73%     
===========================================
  Files           34      34               
  Lines         4237    4231        -6     
  Branches       535       0      -535     
===========================================
- Hits          3590       0     -3590     
- Misses         460    4231     +3771     
+ Partials       187       0      -187     

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[pjonsson]

Apparently everything breaks when trying to remove these things, so I'll get back to this later.