another test for changed files

.github/workflows/linter.yml

@@ -47,14 +47,11 @@ jobs:
       - name: Get all changed files
         id: changed-files
         run: |
-          git fetch origin master
-          $BASE_SHA=$(git merge-base origin/master $GITHUB_SHA)
-          $CHANGED_FILES=$(git diff --name-only $BASE_SHA $GITHUB_SHA)
-          echo "CHANGED_FILES=$CHANGED_FILES" >> $GITHUB_ENV
+          echo "changed_files=$(git diff --name-only -r HEAD^1 HEAD | xargs)" >> $GITHUB_OUTPUT
 
       - name: List all changed files
         env:
-          ALL_CHANGED_FILES: ${{ steps.changed-files.outputs.current_commit }}
+          ALL_CHANGED_FILES: ${{ steps.changed-files.outputs.changed_files }}
         run: |
           for (file in ${ALL_CHANGED_FILES}){
             echo "$file was changed"
@@ -63,8 +60,6 @@ jobs:
       - name: Run dotnet format on changed files
         run: |
           for file in $ALL_CHANGED_FILES; do
-            if [[ $file == *.cs ]]; then
               echo "Formatting $file"
               dotnet format $file --include $file --verify-no-changes --no-restore
-            fi
           done