docs(templates): add mention to star repo (#11762)

.github/ISSUE_TEMPLATE/bug.yml

@@ -4,7 +4,7 @@ body:
   - type: markdown
     attributes:
       value: |
-        Thanks for reporting an issue! Please provide a [Minimal Reproducible Example](https://stackoverflow.com/help/minimal-reproducible-example) and share any additional information that may help reproduce, troubleshoot, and hopefully fix the issue, including screenshots, error traceback, and your Kestra server logs. For quick questions, you can contact us directly on [Slack](https://kestra.io/slack).
+        Thanks for reporting an issue! Please provide a [Minimal Reproducible Example](https://stackoverflow.com/help/minimal-reproducible-example) and share any additional information that may help reproduce, troubleshoot, and hopefully fix the issue, including screenshots, error traceback, and your Kestra server logs. For quick questions, you can contact us directly on [Slack](https://kestra.io/slack). Don't forget to give us a star! ⭐
   - type: textarea
     attributes:
       label: Describe the issue

.github/ISSUE_TEMPLATE/feature.yml

@@ -4,7 +4,7 @@ body:
   - type: textarea
     attributes:
       label: Feature description
-      placeholder: Tell us more about your feature request
+      placeholder: Tell us more about your feature request. Don't forget to give us a star! ⭐
     validations:
       required: true
 labels:

.github/pull_request_template.md

@@ -35,4 +35,4 @@ Remove this section if this change applies to all flows or to the documentation
 
 If there are no setup requirements, you can remove this section.
 
-Thank you for your contribution. ❤️  -->
+Thank you for your contribution. ❤️ Don't forget to give us a star! ⭐  -->