Bump actions/setup-go from 3 to 4 (go-gorm#105)

Bumps [actions/setup-go](https://github.com/actions/setup-go) from 3 to 4.
- [Release notes](https://github.com/actions/setup-go/releases)
- [Commits](actions/setup-go@v3...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]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/tests.yml

@@ -45,7 +45,7 @@ jobs:
       DATABASE_WRITE_URL: postgres://gorm:gorm@localhost:5432/sharding-write-test
     steps:
       - name: Set up Go
-        uses: actions/setup-go@v3
+        uses: actions/setup-go@v4
         with:
           go-version: "1.20"
         id: go
@@ -98,7 +98,7 @@ jobs:
       DATABASE_WRITE_URL: root:gorm@tcp(127.0.0.1:3306)/sharding-write-test?charset=utf8mb4&parseTime=True&loc=Local
     steps:
       - name: Set up Go
-        uses: actions/setup-go@v3
+        uses: actions/setup-go@v4
         with:
           go-version: "1.20"
         id: go
@@ -153,7 +153,7 @@ jobs:
       DATABASE_WRITE_URL: root:gorm@tcp(127.0.0.1:3306)/sharding-write-test?charset=utf8mb4&parseTime=True&loc=Local
     steps:
       - name: Set up Go
-        uses: actions/setup-go@v3
+        uses: actions/setup-go@v4
         with:
           go-version: "1.20"
         id: go