ci: refactor GitHub Actions workflows

- Update GitHub Actions workflow to use `checkout@v4`
- Update GitHub Actions workflow to use `setup-go@v5`

Signed-off-by: Bo-Yi Wu <[email protected]>

Author: appleboy

.github/workflows/ci.yml

@@ -9,9 +9,9 @@ jobs:
         go-version: ["1.20", 1.21]
     steps:
       - name: checkout source code
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Install Go
-        uses: actions/setup-go@v4
+        uses: actions/setup-go@v5
         with:
           go-version: ${{ matrix.go-version }}
       - name: Build binary