fix minor code break

Author: d33p0st

action.yml

@@ -55,7 +55,7 @@ runs:
       shell: bash -el {0}
       if: ${{ env.REPLACE == 'true' }}
       run: |
-        if ! git diff --quiet; then
+        if git diff --quiet; then
           git config --global user.name "github-actions[bot]"
           git config --global user.email "github-actions[bot]@users.noreply.github.com"
           git add .