Update Python to 3.14.5/base image to 3.14-alpine3.22-2026.05.0 (#6874)

Update to the latest base image:
* https://github.com/home-assistant/docker-base/releases/tag/2026.05.0

This also brings Python to 3.14.5, so update it in CI.

Co-authored-by: Jan Čermák <sairon@users.noreply.github.com>

.github/workflows/builder.yml

@@ -33,7 +33,7 @@ on:
       - setup.py
 
 env:
-  DEFAULT_PYTHON: "3.14.4"
+  DEFAULT_PYTHON: "3.14.5"
   COSIGN_VERSION: "v2.5.3"
   BUILD_NAME: supervisor
   BUILD_TYPE: supervisor

.github/workflows/ci.yaml

@@ -8,7 +8,7 @@ on:
   pull_request: ~
 
 env:
-  DEFAULT_PYTHON: "3.14.4"
+  DEFAULT_PYTHON: "3.14.5"
   PRE_COMMIT_CACHE: ~/.cache/pre-commit
   MYPY_CACHE_VERSION: 1