test(action): fix the test action.

Author: fky2015

Diff for: .github/workflows/test.yaml

@@ -33,11 +33,8 @@ jobs:
     steps:
       - uses: actions/checkout@v3
       - uses: xu-cheng/texlive-action/full@v1
+        name: Check there is nothing to diff.
         with:
           run: |
             apk add make
-            make copy
-      - uses: actions/checkout@v3
-      - name: Check there is nothing to diff.
-        run: |
             make check-cls