Clean trailing new lines in extra params

Author: Rakambda

.github/workflows/gradle-jib-publish.yml

@@ -69,14 +69,21 @@ jobs:
           else
             echo "tag=${{ inputs.docker-tag }}" >> "$GITHUB_OUTPUT"
           fi
+
+      - name: Clean extra params
+        id: extra-params
+        run: |
+          $EXTRA_PARAMS=$(printf "%s" "${{ secrets.jib-extra-params }}")
+          echo "extra-params=$EXTRA_PARAMS" >> "$GITHUB_OUTPUT"
+
       - name: Setup Gradle
         uses: gradle/actions/setup-gradle@v4.4.2
         with:
           cache-disabled: true
       - name: Jib
         run: |
           ./gradlew \
-          jib ${{ secrets.jib-extra-params }} \
+          jib ${{ steps.extra-params.outputs.extra-params }} \
           -Djib.to.auth.username=${{ secrets.docker-username }} \
           -Djib.to.auth.password=${{ secrets.docker-token }} \
           -Djib.to.image=${{ secrets.docker-repo }}/${{ inputs.docker-image }}:${{ steps.image-tag.outputs.tag }} \