[#557] Add validation step

Author: markgravity

.github/project_workflows/create_release_pull_request.yml

@@ -62,6 +62,12 @@ jobs:
       contents: write
       pull-requests: write
     steps:
+      - name: Validate Version Input
+        run: |
+          if ! [[ "${{ github.event.inputs.nextVersion }}" =~ ^[0-9]+\.[0-9]+\.[0-9]+$ ]]; then
+            echo "Error: nextVersion must follow semantic versioning (e.g., 1.2.3)"
+            exit 1
+          fi
       - name: Create Bump Version branch
         uses: peterjgrainger/[email protected]
         env: