Update Go version to 1.24 (#3167)

* Update Go version to 1.24
* Update golangci-lint version
* Add envtest to tool
* Add dashboard linter as a tool
* Uset t.Cleanup

---------

Signed-off-by: Sanket Sudake <sanketsudake@gmail.com>

pkg/utils/httpserver/server_test.go

@@ -17,10 +17,9 @@ import (
 
 func TestStartServer(t *testing.T) {
 	mgr := manager.New()
-	defer mgr.Wait()
+	t.Cleanup(mgr.Wait)
 
-	ctx, cancel := context.WithCancel(context.Background())
-	defer cancel()
+	ctx := t.Context()
 	logger := loggerfactory.GetLogger()
 	m := mux.NewRouter()
 	m.Handle("/", http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {

pkg/utils/otel/provider_test.go

@@ -1,7 +1,6 @@
 package otel
 
 import (
-	"context"
 	"fmt"
 	"os"
 	"reflect"
@@ -62,8 +61,7 @@ func TestGetTraceExporter(t *testing.T) {
 		t.Errorf("Expected OTEL_EXPORTER_OTLP_INSECURE to be set, got %s", OtelInsecureEnvVar)
 	}
 	logger := loggerfactory.GetLogger()
-	ctx, cancel := context.WithCancel(context.Background())
-	defer cancel()
+	ctx := t.Context()
 	tests := []struct {
 		oltpEndpoint string
 		oltpInsecure string

pkg/utils/serviceaccount_test.go

@@ -1,7 +1,6 @@
 package utils
 
 import (
-	"context"
 	"os"
 	"regexp"
 	"testing"
@@ -15,9 +14,8 @@ import (
 
 func TestServiceAccountCheck(t *testing.T) {
 	mgr := manager.New()
-	defer mgr.Wait()
-	ctx, cancel := context.WithCancel(context.Background())
-	defer cancel()
+	t.Cleanup(mgr.Wait)
+	ctx := t.Context()
 	kubernetesClient := fake.NewSimpleClientset()
 	logger := loggerfactory.GetLogger()
 	os.Setenv(ENV_CREATE_SA, "true")