fix action argument

Author: jadamcrain

.github/workflows/ci.yml

@@ -316,7 +316,7 @@ jobs:
       - name: Import PGP key
         uses: crazy-max/ghaction-import-gpg@v5
         with:
-          gpg-private-key: ${{ secrets.SFIO_PGP_PRIVATE_KEY }}
+          gpg_private_key: ${{ secrets.SFIO_PGP_PRIVATE_KEY }}
           passphrase: ${{ secrets.SFIO_PGP_PRIVATE_KEY_PASSPHRASE }}
       - name: Login to OSSRH
         uses: whelk-io/maven-settings-xml-action@v21