feat(ci): add tests for SQL Server

[RobertCraigie]

Summary

Please summarise the changes this pull request is making here.

TODO:

• Check inverse tests actually fail on the right things

Checklist

• Unit tests for the changes exist
• Tests pass without significant drop in coverage
• Documentation reflects changes where applicable
• Test snapshots have been updated if applicable

Agreement

By submitting this pull request, I confirm that you can use, modify, copy and redistribute this contribution, under the terms of your choice.

[codecov]

Codecov Report

Base: 86.52% // Head: 87.02% // Increases project coverage by +0.50% 🎉

Coverage data is based on head (a32b2e6) compared to base (edc9b66).
Patch coverage: 0.00% of modified lines in pull request are covered.

❗ Current head a32b2e6 differs from pull request most recent head 82852a3. Consider uploading reports for the commit 82852a3 to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #574      +/-   ##
==========================================
+ Coverage   86.52%   87.02%   +0.50%     
==========================================
  Files         128      133       +5     
  Lines        6240     6345     +105     
  Branches     1027     1161     +134     
==========================================
+ Hits         5399     5522     +123     
+ Misses        796      779      -17     
+ Partials       45       44       -1     

Impacted Files	Coverage Δ
databases/_types.py	0.00% <0.00%> (ø)
databases/constants.py	0.00% <0.00%> (ø)
databases/main.py	0.00% <0.00%> (ø)
databases/tests/features/test_create_many.py	100.00% <ø> (ø)
databases/tests/utils.py	0.00% <ø> (ø)
src/prisma/generator/models.py	91.43% <0.00%> (-0.13%)	⬇️
tests/utils.py	100.00% <0.00%> (ø)
tests/conftest.py	100.00% <0.00%> (ø)
... and 37 more

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