Update dependencies & Go (#48)

- Update command-line build tools
- Update Go for CI
- Rename unused parameter

.github/workflows/ci.yaml

@@ -15,7 +15,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        go-version: [1.18.x,1.19.x]
+        go-version: [1.19.x, 1.20.x]
     steps:
       - name: Checkout Code
         uses: actions/checkout@v3
@@ -36,5 +36,5 @@ jobs:
       - name: Lint
         # Often, lint & gofmt guidelines depend on the Go version. To prevent
         # conflicting guidance, run only on the most recent supported version.
-        if: matrix.go-version == '1.19.x'
+        if: matrix.go-version == '1.20.x'
         run: make checkgenerate && make lint

Makefile

@@ -75,7 +75,7 @@ checkgenerate:
 
 $(BIN)/buf: Makefile
 	@mkdir -p $(@D)
-	GOBIN=$(abspath $(@D)) $(GO) install github.com/bufbuild/buf/cmd/buf@v1.14.0
+	GOBIN=$(abspath $(@D)) $(GO) install github.com/bufbuild/buf/cmd/buf@v1.17.0
 
 $(BIN)/license-header: Makefile
 	@mkdir -p $(@D)
@@ -84,8 +84,8 @@ $(BIN)/license-header: Makefile
 
 $(BIN)/golangci-lint: Makefile
 	@mkdir -p $(@D)
-	GOBIN=$(abspath $(@D)) $(GO) install github.com/golangci/golangci-lint/cmd/golangci-lint@v1.50.0
+	GOBIN=$(abspath $(@D)) $(GO) install github.com/golangci/golangci-lint/cmd/golangci-lint@v1.52.2
 
 $(BIN)/protoc-gen-go: Makefile
 	@mkdir -p $(@D)
-	GOBIN=$(abspath $(@D)) $(GO) install google.golang.org/protobuf/cmd/protoc-gen-go@v1.28.1
+	GOBIN=$(abspath $(@D)) $(GO) install google.golang.org/protobuf/cmd/protoc-gen-go@v1.30.0

go.mod

@@ -1,6 +1,6 @@
 module connectrpc.com/grpchealth
 
-go 1.18
+go 1.19
 
 require (
 	connectrpc.com/connect v1.5.1

grpchealth.go

@@ -169,7 +169,7 @@ func (c *StaticChecker) SetStatus(service string, status Status) {
 }
 
 // Check implements Checker. It's safe to call concurrently with SetStatus.
-func (c *StaticChecker) Check(ctx context.Context, req *CheckRequest) (*CheckResponse, error) {
+func (c *StaticChecker) Check(_ context.Context, req *CheckRequest) (*CheckResponse, error) {
 	if req.Service == "" {
 		return &CheckResponse{Status: StatusServing}, nil
 	}