!feat(backend): bump minimum python version (#12223)

* bump ci versions

* bump installer version

* bump tooling version ref

* bump doc refs

* bump / refactor code refs

* bump debug ref

* remove now unneeded deps

* bump release version

* remove distutils

* fix finder call

* remove old compat code

* add changelog entry

* lower cov target for now

.pre-commit-config.yaml

@@ -97,4 +97,4 @@ repos:
     rev: 0.4.3
     hooks:
     -   id: teyit
-        language_version: python3.11
+        language_version: python3.12