enh: fail test job if isort, black fail, etc.

.github/workflows/tests.yml

@@ -101,6 +101,10 @@ jobs:
   pytest:
     name: Pytest
     runs-on: ubuntu-20.04
+    needs: chores  # Ensure pytest runs only after chores job is completed
+
+    # Run pytest only if black, isort, and license pass
+    if: ${{ success() && steps.black.outcome == 'success' && steps.isort.outcome == 'success' && steps.license.outcome == 'success' }}
 
     steps:
     - uses: actions/checkout@v3
@@ -125,7 +129,7 @@ jobs:
   regression_tests:
     name: Regression Tests
     runs-on: ubuntu-20.04
-    needs: pytest  # ensure regression tests are only run if tests pass
+    needs: pytest  # Ensure regression tests are only run if pytest job passes
 
     steps:
     - uses: actions/checkout@v3
@@ -152,4 +156,4 @@ jobs:
         else
           echo "No regression test results found in main branch"
         fi
-        pytest -m regression
+        pytest -m regression