update PR template

Author: hathach

.github/PULL_REQUEST_TEMPLATE.md

@@ -3,10 +3,8 @@
 *By completing this PR sufficiently, you help us to review this Pull Request quicker and also help improve the quality of Release Notes*
 
 - [ ] Please provide specific title of the PR describing the change
-- [ ] Please provide related links (*eg. Issue which will be closed by this Pull Request*)
 - [ ] If you are adding an new boards, please make sure
   - [ ] Provide link to your allocated VID/PID if applicable
-  - [ ] Add your board to [action ci](/.github/workflows) in correct workflow and alphabet order for release binary
   - [ ] `UF2_BOARD_ID` in your board.h follow correct format from [uf2 specs](https://github.com/microsoft/uf2#files-exposed-by-bootloaders)
 
 *This checklist items that are not applicable to your PR can be deleted.*