Skip GPG signing on PRs

Signed-off-by: Marvin Froeder <marvin@datasqrl.com>

Author: velo

.github/workflows/deploy.yml

@@ -35,6 +35,7 @@ jobs:
           java-version: '11'
 
       - name: Import GPG Key
+        if: github.event_name != 'pull_request'
         env:
           GPG_PRIVATE_KEY: ${{ secrets.GPG_PRIVATE_KEY }}
         run: |
@@ -75,6 +76,6 @@ jobs:
           elif [[ "${{ github.ref_name }}" == "main" ]]; then
             mvn -B clean deploy -Pci,flink-1.19
           else
-            mvn -B clean install -Pci,flink-1.19
+            mvn -B clean install -Pci,flink-1.19 -Dgpg.skip=true
           fi