chore(deps): update actions/checkout action to v5

Author: renovate[bot]

.github/workflows/go.yaml

@@ -12,7 +12,7 @@ jobs:
           - "1.20"
           - "1.21"
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
       - name: Set up Go
         uses: actions/setup-go@v5