[v9.3.x] Chore: All tests under pkg/tests should be integration tests (#60071)

Chore: All tests under pkg/tests should be integration tests (#59521)

* Chore: All tests under pkg/tests should be integrationtests

* run alerting integration tests only for sqlite

(cherry picked from commit 2db8ed9441)

Co-authored-by: Marcus Efraimsson <marcus.efraimsson@gmail.com>

pkg/tests/api/plugins/api_plugins_test.go

@@ -27,7 +27,11 @@ const (
 
 var updateSnapshotFlag = false
 
-func TestPlugins(t *testing.T) {
+func TestIntegrationPlugins(t *testing.T) {
+	if testing.Short() {
+		t.Skip("skipping integration test")
+	}
+
 	dir, cfgPath := testinfra.CreateGrafDir(t, testinfra.GrafanaOpts{
 		PluginAdminEnabled: true,
 	})