chore(ci): update golangci-lint to latest version

Signed-off-by: Ben Reedy <breed808@breed808.com>

.github/workflows/lint.yml

@@ -98,9 +98,9 @@ jobs:
           go-version-file: 'go.mod'
 
       - name: golangci-lint
-        uses: golangci/golangci-lint-action@v3
+        uses: golangci/golangci-lint-action@v6
         with:
-          version: v1.55.2
+          version: v1.58
           args: "--timeout=5m"
 
       # golangci-lint action doesn't always provide helpful output, so re-run without the action for

exporter.go

@@ -180,14 +180,14 @@ func main() {
 
 	mux := http.NewServeMux()
 	mux.HandleFunc(*metricsPath, withConcurrencyLimit(*maxRequests, collectors.BuildServeHTTP(*disableExporterMetrics, *timeoutMargin)))
-	mux.HandleFunc("/health", func(w http.ResponseWriter, r *http.Request) {
+	mux.HandleFunc("/health", func(w http.ResponseWriter, _ *http.Request) {
 		w.Header().Set("Content-Type", "application/json")
 		_, err := fmt.Fprintln(w, `{"status":"ok"}`)
 		if err != nil {
 			_ = level.Debug(logger).Log("msg", "Failed to write to stream", "err", err)
 		}
 	})
-	mux.HandleFunc("/version", func(w http.ResponseWriter, r *http.Request) {
+	mux.HandleFunc("/version", func(w http.ResponseWriter, _ *http.Request) {
 		// we can't use "version" directly as it is a package, and not an object that
 		// can be serialized.
 		err := json.NewEncoder(w).Encode(prometheusVersion{

pkg/wmi/wmi_test.go

@@ -12,13 +12,13 @@ type fakeWmiClass struct {
 }
 
 var (
-	mapQueryAll = func(src interface{}, class string, where string) string {
+	mapQueryAll = func(src interface{}, _ string, _ string) string {
 		return QueryAll(src, log.NewNopLogger())
 	}
-	mapQueryAllWhere = func(src interface{}, class string, where string) string {
+	mapQueryAllWhere = func(src interface{}, _ string, where string) string {
 		return QueryAllWhere(src, where, log.NewNopLogger())
 	}
-	mapQueryAllForClass = func(src interface{}, class string, where string) string {
+	mapQueryAllForClass = func(src interface{}, class string, _ string) string {
 		return QueryAllForClass(src, class, log.NewNopLogger())
 	}
 	mapQueryAllForClassWhere = func(src interface{}, class string, where string) string {