Fix release command

Author: xerial

.github/workflows/release.yml

@@ -28,7 +28,7 @@ jobs:
         env:
           PGP_PASSPHRASE: ${{ secrets.PGP_PASSPHRASE }}
         run: |
-          ./sbt publish
+          ./sbt publishSigned
       - name: Release to Sonatype
         env:
           SONATYPE_USERNAME: '${{ secrets.SONATYPE_USER }}'