Update add-to-changelog.yaml

Author: seymourimadeit

.github/workflows/add-to-changelog.yaml

@@ -5,6 +5,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout repo
+        if: contains(github.event.head_commit.message, '[CHANGE]')
         uses: actions/checkout@v4
         with:
           fetch-depth: 1000