Fix GPG setup

Author: mavam

.github/workflows/reusable-release.yaml

@@ -77,12 +77,12 @@ jobs:
           private-key: ${{ secrets.TENZIR_GITHUB_APP_PRIVATE_KEY }}
 
       - name: Set up GPG signing
-        run: |
-          echo "${{ secrets.TENZIR_BOT_GPG_SIGNING_KEY }}" | gpg --batch --import
-          KEY_ID=$(gpg --list-secret-keys --keyid-format=long | grep sec | head -1 | awk '{print $2}' | cut -d'/' -f2)
-          git config --global user.signingkey "$KEY_ID"
-          git config --global commit.gpgsign true
-          git config --global tag.gpgsign true
+        uses: crazy-max/ghaction-import-gpg@v6
+        with:
+          gpg_private_key: ${{ secrets.TENZIR_BOT_GPG_SIGNING_KEY }}
+          git_user_signingkey: true
+          git_commit_gpgsign: true
+          git_tag_gpgsign: true
 
       - name: Configure Git
         env: