only run tests on non-forks

Author: David Cavazos

.github/workflows/custard-ci-dev.yaml

@@ -61,6 +61,7 @@ jobs:
           echo "setups=$(./cloud-samples-tools/bin/custard setup-files .github/config/nodejs-dev.jsonc paths.txt)" >> $GITHUB_OUTPUT
 
   nodejs-test:
+    if: github.event.pull_request && github.event.pull_request.head.repo.fork == false
     name: test
     needs: affected
     runs-on: ubuntu-latest

.github/workflows/custard-ci.yaml

@@ -122,6 +122,7 @@ jobs:
       - run: ./.github/workflows/utils/region-tags-tests.sh
 
   test:
+    if: github.event.pull_request && github.event.pull_request.head.repo.fork == false
     name: test (legacy)
     needs: affected
     runs-on: ubuntu-latest