CHANGELOG: add PR hygiene checks

Author: dannywillems

CHANGELOG.md

@@ -8,6 +8,10 @@ and this project adheres to
 
 ## [Unreleased]
 
+### Infrastructure
+
+- CI: add PR hygiene checks using dannywillems/toolbox ([8d408a8], [#81])
+
 ### Added
 
 - AsyncClient with full async/await support using httpx
@@ -88,6 +92,7 @@ and this project adheres to
 [0.1.9]: https://github.com/LeakIX/LeakIXClient-Python/releases/tag/v0.1.9
 
 <!-- Commit links -->
+[8d408a8]: https://github.com/LeakIX/LeakIXClient-Python/commit/8d408a8
 [c62d2a4]: https://github.com/LeakIX/LeakIXClient-Python/commit/c62d2a4
 [01b280f]: https://github.com/LeakIX/LeakIXClient-Python/commit/01b280f
 [aa9cc03]: https://github.com/LeakIX/LeakIXClient-Python/commit/aa9cc03
@@ -119,3 +124,4 @@ and this project adheres to
 [#75]: https://github.com/LeakIX/LeakIXClient-Python/pull/75
 [#76]: https://github.com/LeakIX/LeakIXClient-Python/pull/76
 [#78]: https://github.com/LeakIX/LeakIXClient-Python/pull/78
+[#81]: https://github.com/LeakIX/LeakIXClient-Python/issues/81