Link to article from integration docs

[Kemi-Elizabeth]

Where on docs.platform.sh should be changed?

https://devcenter.upsun.com/posts/gitlab-push-solution/ needs to be linked to in the following pages:

https://docs.upsun.com/integrations/source/gitlab.html
https://docs.upsun.com/integrations/overview.html

What exactly should be updated?

https://docs.upsun.com/integrations/source/gitlab.html
https://docs.upsun.com/integrations/overview.html

Additional context

No response