chore: Add second GitHub application ID to e2e tests

Added the `TEST_GITHUB_SECOND_APPLICATION_ID` environment variable to
the e2e test workflow. This is necessary to support testing with a
second GitHub application ID.

Author: chmouel

.github/workflows/e2e.yaml

@@ -416,6 +416,7 @@ jobs:
           TEST_BITBUCKET_SERVER_TOKEN: ${{ secrets.BITBUCKET_SERVER_TOKEN }}
           TEST_BITBUCKET_SERVER_API_URL: ${{ secrets.BITBUCKET_SERVER_API_URL }}
           TEST_BITBUCKET_SERVER_WEBHOOK_SECRET: ${{ secrets.BITBUCKET_SERVER_WEBHOOK_SECRET }}
+          TEST_GITHUB_SECOND_APPLICATION_ID: ${{ vars.TEST_GITHUB_SECOND_APPLICATION_ID }}
         run: |
           ./hack/gh-workflow-ci.sh run_e2e_tests