fix(check-prettier): don't check removed files

.github/workflows/ga-misc-check-prettier.yml

@@ -20,7 +20,7 @@ jobs:
       - name: 🔍 Get all changed *.md file(s)
         id: changed-md
         run: |
-          echo "changed_files=$(git diff --name-only --merge-base origin/master | grep "\.md$" | xargs)" >> $GITHUB_OUTPUT
+          echo "changed_files=$(git diff --name-only --diff-filter=ACMRT --merge-base origin/master | grep "\.md$" | xargs)" >> $GITHUB_OUTPUT
 
       - name: Run step if any *.md file(s) changed
         if: steps.changed-md.outputs.changed_files != ''