build: Check that all Scala test suites run in PR builds

[andygrove]

Which issue does this PR close?

Closes #2303

Rationale for this change

We have to manually add new tests suites to the CI workflows, and sometimes we forget.

What changes are included in this PR?

How are these changes tested?

See https://github.com/apache/datafusion-comet/actions/runs/17468541728/job/49610635640?pr=2304

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 57.98%. Comparing base (f09f8af) to head (36847ce).
⚠️ Report is 458 commits behind head on main.

Additional details and impacted files

@@             Coverage Diff              @@
##               main    #2304      +/-   ##
============================================
+ Coverage     56.12%   57.98%   +1.85%     
- Complexity      976     1290     +314     
============================================
  Files           119      146      +27     
  Lines         11743    13374    +1631     
  Branches       2251     2375     +124     
============================================
+ Hits           6591     7755    +1164     
- Misses         4012     4356     +344     
- Partials       1140     1263     +123     

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