chore: use SSH signing instead of GPG for lerna commits

Author: jremy42

.github/workflows/deploy-package.yml

@@ -21,15 +21,15 @@ jobs:
           token: ${{ secrets.GH_TOKEN }}
       - run: git fetch --depth=1 origin +refs/tags/*:refs/tags/*
 
-      - name: Import GPG key
+      - name: Configure SSH signing
         run: |
-          echo "${{ secrets.GPG_PRIVATE_KEY }}" | gpg --batch --import
-          GPG_KEY_ID=$(gpg --list-secret-keys --keyid-format=long | grep sec | head -n1 | awk '{print $2}' | cut -d'/' -f2)
-          git config --global user.signingkey "$GPG_KEY_ID"
+          mkdir -p ~/.ssh
+          echo "${{ secrets.SSH_SIGNING_PRIVATE_KEY }}" > ~/.ssh/signing_key
+          chmod 600 ~/.ssh/signing_key
+          git config --global gpg.format ssh
+          git config --global user.signingkey ~/.ssh/signing_key
           git config --global commit.gpgsign true
           git config --global tag.gpgsign true
-        env:
-          GPG_TTY: $(tty)
 
       - name: Git Identity
         run: |