Update release issue template

What does this MR do?

Based on discussions in gitlab!85171 (comment 912378897) , updating the reference release MR to follow to GitLab repository. Also, adding some labels.

TODO

• I added the Changelog trailer (e.g. Changelog: added) to the commits that need to be included in the changelog
• I added unit tests or they are not required
• I added acceptance tests or they are not required
• I added documentation (or it's not required)
• I followed code review guidelines
• I followed Go Style guidelines