Bump Poetry to 2.1.4 (#2297)

<!--
Thanks for opening a pull request!
-->

<!-- In the case this PR will resolve an issue, please replace
${GITHUB_ISSUE_ID} below with the actual Github issue id. -->
<!-- Closes #${GITHUB_ISSUE_ID} -->

# Rationale for this change

# Are these changes tested?

# Are there any user-facing changes?

<!-- In the case of user-facing changes, please add the changelog label.
-->

Author: Fokko

Makefile

@@ -28,7 +28,7 @@ else
   TEST_RUNNER = poetry run
 endif
 
-POETRY_VERSION = 2.1.3
+POETRY_VERSION = 2.1.4
 
 # ============
 # Help Section