Update ci.yaml - fix syntax error

Author: ntdkhiem

.github/workflows/ci.yaml

@@ -23,7 +23,7 @@ jobs:
           echo "gocache=$(go env GOCACHE)" >> $GITHUB_OUTPUT
 
       - name: Clone
-      - uses: actions/checkout@v4
+        uses: actions/checkout@v4
 
       - name: Cache
         uses: actions/cache@v3.0.10