chore: add client pull requests to pull request template (#4716)

.github/pull_request_template.md

@@ -13,7 +13,9 @@ Thanks for your contribution! Take a moment to answer these questions so that re
 ## References
 
 <!--
-Are there any issues that this pull request is tied to? Are there other links that reviewers should consult to understand these changes better?
+Are there any issues that this pull request is tied to?
+Are there other links that reviewers should consult to understand these changes better?
+Are there client or consumer pull requests to adopt any breaking changes?
 
 For example:
 
@@ -50,3 +52,4 @@ Finally, if you're only making changes to development scripts or tests, you may
 - [ ] I've updated the test suite for new or updated code as appropriate
 - [ ] I've updated documentation (JSDoc, Markdown, etc.) for new or updated code as appropriate
 - [ ] I've highlighted breaking changes using the "BREAKING" category above as appropriate
+- [ ] I've prepared draft pull requests for clients and consumer packages to resolve any breaking changes