Fix typo

Author: Dasomeone

.github/workflows/lint-mixins.yml

@@ -1,5 +1,4 @@
 ---
-name: "Lint Mixins"
 
 permissions:
   contents: read
@@ -37,8 +36,9 @@ jobs:
           dir_names: true
           dir_names_exclude_current_dir: true
           dir_names_max_depth: 1
-          files: **-mixin/
+          files: | 
+            **-mixin/
           matrix: true
 
-      - name: List all changed mixins:
+      - name: List all changed mixins
         run: echo '${{ steps.changed-mixins.outputs.all_changed_files }}'