Fix github action

Signed-off-by: aaron67 <[email protected]>

Author: gitzhou

.github/workflows/build.yml

@@ -44,9 +44,9 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@master
+      - uses: actions/checkout@v2
       - name: Setup Python
-        uses: actions/setup-python@master
+        uses: actions/setup-python@v2
         with:
           python-version: 3.9
       - name: Generate coverage report

codecov.yml

@@ -3,7 +3,7 @@ coverage:
     project:
       default:
         target: 100
-        threshold: 0
+        threshold: 0%
         branches:
           - master
         if_ci_failed: error