[BUG] Don't fire notification for comment of pending review

- When a comment was updated or deleted and was part of an
pending/ongoing review, it would have triggered a notification, such as
a webhook.
- This patch checks if the comment is part of a pending review and then
does not fire a notification and, in the case of updating a comment,
does not save the content history because this is not necessary if it is
still a "draft" comment given it is a pending comment (there is no need
to see my embarrassing typos).
- Adds integration tests.
- Resolves https://codeberg.org/forgejo/forgejo/issues/4368

services/issue/main_test.go

@@ -7,10 +7,17 @@ import (
 	"testing"
 
 	"code.gitea.io/gitea/models/unittest"
+	"code.gitea.io/gitea/modules/setting"
+	"code.gitea.io/gitea/services/webhook"
 
 	_ "code.gitea.io/gitea/models/actions"
 )
 
 func TestMain(m *testing.M) {
-	unittest.MainTest(m)
+	unittest.MainTest(m, &unittest.TestOptions{
+		SetUp: func() error {
+			setting.LoadQueueSettings()
+			return webhook.Init()
+		},
+	})
 }