Bump actions/setup-go from 2 to 4

Bumps [actions/setup-go](https://github.com/actions/setup-go) from 2 to 4.
- [Release notes](https://github.com/actions/setup-go/releases)
- [Commits](actions/setup-go@v2...v4)

---
updated-dependencies:
- dependency-name: actions/setup-go
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

.github/workflows/ci.yaml

@@ -14,7 +14,7 @@ jobs:
       - name: Checkout code
         uses: actions/checkout@v2
       - name: Install Go
-        uses: actions/setup-go@v2
+        uses: actions/setup-go@v4
         with:
           go-version: "1.20"
       - name: lint