Replace remaining calls to testing.Short where possible. (#110765)

* Replace remaining calls to testing.Short where possible.
* Update style guide.
* Revert change in TestAlertmanager_ExtraDedupStage, as it doesn't work.
* Make TestAlertRulePostExport into integration test.

pkg/tests/apis/iam/service_account_integration_test.go

@@ -15,6 +15,8 @@ import (
 	"github.com/grafana/grafana/pkg/setting"
 	"github.com/grafana/grafana/pkg/tests/apis"
 	"github.com/grafana/grafana/pkg/tests/testinfra"
+	"github.com/grafana/grafana/pkg/util/testutil"
+
 	"github.com/stretchr/testify/require"
 	"k8s.io/apimachinery/pkg/api/errors"
 	"k8s.io/apimachinery/pkg/runtime/schema"
@@ -27,9 +29,7 @@ var gvrServiceAccounts = schema.GroupVersionResource{
 }
 
 func TestIntegrationServiceAccounts(t *testing.T) {
-	if testing.Short() {
-		t.Skip("skipping integration test")
-	}
+	testutil.SkipIntegrationTestInShortMode(t)
 
 	// TODO: Figure out why rest.Mode4 is failing
 	modes := []rest.DualWriterMode{rest.Mode0, rest.Mode1, rest.Mode2, rest.Mode3}