github: Add another job to combine test results for status checks

Author: bkeryan

.github/workflows/test_actions.yml

@@ -28,6 +28,7 @@ jobs:
               print(f"::error title=Test Failure::The Python version does not match. Got {version}, expected {expected_version}.")
               sys.exit(1)
         shell: python
+
   test_setup_poetry:
     name: Test setup-poetry
     runs-on: ${{ matrix.os }}
@@ -53,6 +54,7 @@ jobs:
             exit 1
           fi
         shell: bash
+
   test_check_project_version:
     name: Test check-project-version
     runs-on: ubuntu-latest
@@ -86,6 +88,7 @@ jobs:
         run: |
           echo "::error title=Test Failure::The previous step did not fail as expected."
           exit 1
+
   test_update_project_version:
     name: Test update-project-version
     runs-on: ubuntu-latest
@@ -132,3 +135,15 @@ jobs:
         with:
           project-directory: test-project
           expected-version: 1.0.2.dev1
+
+  # This job is intended to combine the test results so we don't have to list
+  # each matrix combination in the required status check settings. There are a
+  # lot of corner cases that make this harder than it should be; see See
+  # https://github.com/orgs/community/discussions/26822 for more info.
+  test_results:
+    name: Test Results
+    runs-on: ubuntu-latest
+    needs: [test_setup_python, test_setup_poetry, test_check_project_version, test_update_project_version]
+    if: ${{ !cancelled() }}
+    steps:
+      - run: exit 0