ci: update Go workflows to use actions/setup-go@v4 and support Go 1.21

- Update the `go.yml` workflow to use `actions/setup-go@v4` instead of `actions/setup-go@v3`
- Add `1.21` as a supported version of Go in the `go.yml` workflow
- Update the `goreleaser.yml` workflow to use `actions/setup-go@v4` instead of `actions/setup-go@v2`
- Change the Go version in the `goreleaser.yml` workflow to `1.17`

Signed-off-by: Bo-Yi Wu <appleboy.tw@gmail.com>

.github/workflows/go.yml

@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Setup go
-        uses: actions/setup-go@v3
+        uses: actions/setup-go@v4
         with:
           go-version: '^1.16'
       - name: Checkout repository
@@ -26,7 +26,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest]
-        go: [1.18, 1.19, '1.20']
+        go: [1.18, 1.19, '1.20', 1.21]
         include:
           - os: ubuntu-latest
             go-build: ~/.cache/go-build
@@ -39,7 +39,7 @@ jobs:
       GOPROXY: https://proxy.golang.org
     steps:
       - name: Set up Go ${{ matrix.go }}
-        uses: actions/setup-go@v3
+        uses: actions/setup-go@v4
         with:
           go-version: ${{ matrix.go }}
 

.github/workflows/goreleaser.yml

@@ -19,7 +19,7 @@ jobs:
           fetch-depth: 0
       -
         name: Set up Go
-        uses: actions/setup-go@v2
+        uses: actions/setup-go@v4
         with:
           go-version: 1.17
       -