Add version history to ZenTao and DingTalk pages

doc/integration/ding_talk.md

@@ -6,6 +6,8 @@ info: To determine the technical writer assigned to the Stage/Group associated w
 
 # DingTalk OAuth 2.0 OmniAuth provider **(FREE SELF)**
 
+> [Introduced](https://gitlab.com/gitlab-org/gitlab/-/issues/341898) in GitLab 14.5.
+
 You can sign in to GitLab using your DingTalk account.
 Sign in to DingTalk Open Platform and create an application on it. DingTalk generates a client ID and secret key for you to use.
 

doc/user/project/integrations/zentao.md

@@ -6,6 +6,8 @@ info: To determine the technical writer assigned to the Stage/Group associated w
 
 # ZenTao product integration **(PREMIUM)**
 
+> [Introduced](https://gitlab.com/gitlab-org/gitlab/-/issues/338178) in GitLab 14.5.
+
 [ZenTao](https://www.zentao.net/) is a web-based project management platform.
 
 ## Configure ZenTao