hotfix(ci): skip DataDog upload on forks (#7802)

* hotfix(ci): skip DataDog upload on forks

* fixup! hotfix(ci): skip DataDog upload on forks

.github/actions/upload-datadog/action.yaml

@@ -9,6 +9,10 @@ runs:
   steps:
     - shell: bash
       run: |
+        if [[ ${{ github.event.pull_request.head.repo.full_name != 'coder/coder' }} ]]; then
+          echo "Not a pull request from the main repo, skipping..."
+          exit 0
+        fi
         npm install -g @datadog/datadog-ci
         datadog-ci junit upload --service coder ./gotests.xml \
           --tags os:${{runner.os}} --tags runner_name:${{runner.name}}