Upgrade create-pull-request action and sign commits (#14)

Updated the create-pull-request action to version 7 and enabled commit signing.

Author: Kayrnt

.github/workflows/changie_generate_release_pr.yml

@@ -40,8 +40,9 @@ jobs:
         fi
 
     - name: Create Pull Request
-      uses: peter-evans/create-pull-request@v4
+      uses: peter-evans/create-pull-request@v7
       with:
         title: Release ${{ steps.latest.outputs.output }}
         branch: release/${{ steps.latest.outputs.output }}
         commit-message: Release ${{ steps.latest.outputs.output }}
+        sign-commits: true