Use pull_request_target for all workflows.

Author: uhafner

.github/workflows/ci.yml

@@ -33,4 +33,4 @@ jobs:
       - name: Build with Maven
         env:
           BROWSER: chrome-container
-        run: mvn -V --color always -ntp clean verify '-Djenkins.test.timeout=5000' '-Dgpg.skip'
+        run: mvn -V --color always -ntp clean verify '-Djenkins.test.timeout=5000' '-Dgpg.skip' -Pno-ui-tests