Add Github run number to distinguish between different runs

.github/workflows/test-examples.yml

@@ -74,6 +74,7 @@ jobs:
           notebook=$(basename -- "${NOTEBOOK_TO_TEST}")
           echo "TEST_DIRECTORY=${directory}"  >> "$GITHUB_ENV"
           echo "TEST_NOTEBOOK=${notebook}" >> "$GITHUB_ENV"
+          echo "COMET_LOG_OTHER_GITHUB_RUN=${{github.run_number}}" >> "$GITHUB_ENV"
 
       - name: debugging
         if:  runner.debug == '1'