test dry-run release to validate gpg + sonatype creds (4th round)

Author: areuge

.github/workflows/maven-release.yaml

@@ -57,10 +57,16 @@ jobs:
 
       - name: Check 2 Verify GPG Key & Passphrase (Local Signing)
         run: |
+            echo "=== DIAGNOSTIC : List of secrets keys imported ==="
+            gpg --list-secret-keys
+            
+            echo "=== Maven verification ==="
             mvn clean verify -B -ntp \
               -DskipTests=true \
               -Dmaven.javadoc.skip=true \
-              -Dgpg.passphrase="${{ secrets.SONATYPE_GPG_PASSPHRASE }}"
+              -Dgpg.passphrase="$GPG_PASSPHRASE"
+        env:
+          GPG_PASSPHRASE: ${{ secrets.SONATYPE_GPG_PASSPHRASE }}
 
 #      - name: Run Maven Release
 #        run: |