chore(automation): update PR template to include closes command

.github/PULL_REQUEST_TEMPLATE.md

@@ -1,5 +1,5 @@
 <!-- markdownlint-disable MD041 MD043 -->
-**Issue number:**
+**Issue number:** closes #<replace with issue number>
 
 ## Summary
 
@@ -11,29 +11,17 @@
 
 > Please share what the user experience looks like before and after this change
 
-## Checklist
+<!-------
+Before creating the pull request, please make sure you do the following:
 
-If your change doesn't seem to apply, please leave them unchecked.
+- Read the Contributing Guidelines at https://github.com/aws-powertools/powertools-lambda-python/blob/main/CONTRIBUTING.md#sending-a-pull-request
+- Check that there isn't already a PR that addresses the same issue. If you find a duplicate, please leave a comment under the existing PR so we can discuss how to move forward
+- Check that the change meets the project's tenets https://docs.powertools.aws.dev/lambda/python/latest/#tenets
+- Add a PR title that follows the conventional commit semantics - https://github.com/aws-powertools/powertools-lambda-python/blob/develop/.github/semantic.yml
+- If relevant, add tests that prove that the change is effective and works
+------->
 
-* [ ] [Meet tenets criteria](https://docs.powertools.aws.dev/lambda/python/#tenets)
-* [ ] I have performed a self-review of this change
-* [ ] Changes have been tested
-* [ ] Changes are documented
-* [ ] PR title follows [conventional commit semantics](https://github.com/aws-powertools/powertools-lambda-python/blob/develop/.github/semantic.yml)
-
-<details>
-<summary>Is this a breaking change?</summary>
-
-**RFC issue number**:
-
-Checklist:
-
-* [ ] Migration process documented
-* [ ] Implement warnings (if it can live side by side)
-
-</details>
-
-## Acknowledgment
+---
 
 By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of your choice.