Run TestFull task for pushes to main

This will additionally run the unit tests against the PowerShell 7.2 and 7.3 SDKs, and the end-to-end tests under Constrained Language Mode.

Author: andyleejordan

.github/workflows/ci-test.yml

@@ -43,6 +43,11 @@ jobs:
         shell: pwsh
         run: Invoke-Build
 
+      - name: Test all SDKs and CLM
+        shell: pwsh
+        if: github.ref == 'refs/heads/main'
+        run: Invoke-Build TestFull
+
       - name: Upload build artifacts
         if: always()
         uses: actions/upload-artifact@v3