The link to the documention in the PR template for modules is dead

[Hugo-Inmanta]

Currently, the PR template reads:

Don't use the github built-in merge, but the process described [here](https://docs.internal.inmanta.com/topics/tasks/commiting_changes_modules.html)

Change the link to:
https://internal.inmanta.com/developer/tasks/commiting_changes_modules.html

[sanderr]

Reopening because this is still relevant for a lot of other modules