Fix release workflow

Motivation:

We use an old way how to configure the gpg action.

Modifications:

Update to new syntax

Result:

Release works again

.github/workflows/ci-release.yml

@@ -38,7 +38,7 @@ jobs:
         id: import_gpg
         uses: crazy-max/ghaction-import-gpg@v6
         with:
-          gpg-private-key: ${{ secrets.GPG_PRIVATE_KEY }}
+          gpg_private_key: ${{ secrets.GPG_PRIVATE_KEY }}
           passphrase: ${{ secrets.GPG_PASSPHRASE }}
 
       - name: Setup git configuration