Improve PR template (#1821)

### ❔What, Why & How

Improve PR template to remind about telemetry as well.

### ✅ Checklist

- [x] Add tests (E2E, unit tests)
- [x] Update RELEASENOTES.md
- [x] Update documentation (e.g. for new settings or scenarios)
- [x] Add telemetry

<!-- Include more checklist entries, if needed -->

Author: mazhelez

.github/pull_request_template.md

@@ -9,5 +9,6 @@ Related to issue: #
 - [ ] Add tests (E2E, unit tests)
 - [ ] Update RELEASENOTES.md
 - [ ] Update documentation (e.g. for new settings or scenarios)
+- [ ] Add telemetry
 
 <!-- Include more checklist entries, if needed -->