Bump base image to 2026.05.0 with Python 3.14.5, use 3.14.5 in CI (#171482)

.github/workflows/builder.yml

@@ -14,7 +14,7 @@ env:
   UV_HTTP_TIMEOUT: 60
   UV_SYSTEM_PYTHON: "true"
   # Base image version from https://github.com/home-assistant/docker
-  BASE_IMAGE_VERSION: "2026.04.0"
+  BASE_IMAGE_VERSION: "2026.05.0"
   ARCHITECTURES: '["amd64", "aarch64"]'
 
 permissions: {}

.python-version

@@ -1 +1 @@
-3.14.4
+3.14.5

script/hassfest/docker/Dockerfile

@@ -2,7 +2,7 @@
 # Automatically generated by hassfest.
 #
 # To update, run python3 -m script.hassfest -p docker
-FROM python:3.14.4-alpine
+FROM python:3.14.5-alpine
 
 ENV \
     UV_SYSTEM_PYTHON=true \