!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

.github/workflows/qc_checks.yaml

@@ -9,7 +9,7 @@ on:
     branches-ignore: ["l10*"]
 
 env:
-  python_version: 3.11
+  python_version: 3.12
   node_version: 24
   # The OS version must be set per job
   server_start_sleep: 60
@@ -379,7 +379,7 @@ jobs:
     continue-on-error: true # continue if a step fails so that coverage gets pushed
     strategy:
       matrix:
-        python_version: [3.11, 3.14]
+        python_version: [3.12, 3.14]
 
     env:
       INVENTREE_DB_NAME: ./inventree.sqlite