Chore: Upgrade Go to 1.19.2 (#56857)

We also need to upgrade the linter together with the Go version, all the changes should relate to either fixing linting problems or upgrading the Go version used to build Grafana.

pkg/tests/api/alerting/api_admin_configuration_test.go

@@ -4,7 +4,7 @@ import (
 	"bytes"
 	"encoding/json"
 	"fmt"
-	"io/ioutil"
+	"io/ioutil"  //nolint:staticcheck // No need to change in v8.
 	"net/http"
 	"testing"
 	"time"

pkg/tests/api/alerting/api_alertmanager_configuration_test.go

@@ -3,7 +3,7 @@ package alerting
 import (
 	"encoding/json"
 	"fmt"
-	"io/ioutil"
+	"io/ioutil"  //nolint:staticcheck // No need to change in v8.
 	"net/http"
 	"regexp"
 	"testing"

pkg/tests/api/alerting/api_alertmanager_test.go

@@ -5,7 +5,7 @@ import (
 	"context"
 	"encoding/json"
 	"fmt"
-	"io/ioutil"
+	"io/ioutil"  //nolint:staticcheck // No need to change in v8.
 	"net/http"
 	"regexp"
 	"strings"

pkg/tests/api/alerting/api_available_channel_test.go

@@ -3,7 +3,7 @@ package alerting
 import (
 	"encoding/json"
 	"fmt"
-	"io/ioutil"
+	"io/ioutil"  //nolint:staticcheck // No need to change in v8.
 	"net/http"
 	"testing"
 

pkg/tests/api/alerting/api_notification_channel_test.go

@@ -7,7 +7,7 @@ import (
 	"errors"
 	"fmt"
 	"io"
-	"io/ioutil"
+	"io/ioutil"  //nolint:staticcheck // No need to change in v8.
 	"mime/multipart"
 	"net"
 	"net/http"
@@ -928,6 +928,7 @@ func newMockNotificationChannel(t *testing.T, grafanaListedAddr string) *mockNot
 	require.NoError(t, err)
 
 	nc := &mockNotificationChannel{
+		//nolint:gosec
 		server: &http.Server{
 			Addr: listener.Addr().String(),
 		},

pkg/tests/api/alerting/api_prometheus_test.go

@@ -5,7 +5,7 @@ import (
 	"context"
 	"encoding/json"
 	"fmt"
-	"io/ioutil"
+	"io/ioutil"  //nolint:staticcheck // No need to change in v8.
 	"net/http"
 	"sort"
 	"testing"

pkg/tests/api/alerting/api_ruler_test.go

@@ -5,7 +5,7 @@ import (
 	"context"
 	"encoding/json"
 	"fmt"
-	"io/ioutil"
+	"io/ioutil"  //nolint:staticcheck // No need to change in v8.
 	"net/http"
 	"testing"
 	"time"

pkg/tests/api/alerting/testing.go

@@ -3,7 +3,7 @@ package alerting
 import (
 	"bytes"
 	"io"
-	"io/ioutil"
+	"io/ioutil"  //nolint:staticcheck // No need to change in v8.
 	"net/http"
 	"testing"
 

pkg/tests/api/dashboards/api_dashboards_test.go

@@ -5,7 +5,7 @@ import (
 	"context"
 	"encoding/json"
 	"fmt"
-	"io/ioutil"
+	"io/ioutil"  //nolint:staticcheck // No need to change in v8.
 	"net/http"
 	"net/url"
 	"os"

pkg/tests/api/plugins/api_plugins_test.go

@@ -5,7 +5,7 @@ import (
 	"context"
 	"encoding/json"
 	"fmt"
-	"io/ioutil"
+	"io/ioutil"  //nolint:staticcheck // No need to change in v8.
 	"net/http"
 	"path/filepath"
 	"testing"