PR template requires label addition to non-permitted author
🐛 Bug
New PR template requires Add labels and milestones, but it is impossible because non-maintainer author do not have labelling permission.
To Reproduce
Try to follow below PR template instruction as non-maintainer.
 - [ ] Add labels and milestones (and optionally projects) to the PR so it can be classified; _Bugfixes should be including in bug-fix release milestones (m.f.X) and features should be included in (m.X.b) releases._

non-maintainer author do not have permission, so can do nothing (no label setup icon, like below image).

Expected behavior
Have labelling permission, so PR author can label the PR.
Environment
master latest (5e09fd3)
Additional context
This template description is introduced in #4523