Drop Python 3.12 support (#135589)

.github/workflows/ci.yaml

@@ -41,8 +41,8 @@ env:
   UV_CACHE_VERSION: 1
   MYPY_CACHE_VERSION: 9
   HA_SHORT_VERSION: "2025.2"
-  DEFAULT_PYTHON: "3.12"
-  ALL_PYTHON_VERSIONS: "['3.12', '3.13']"
+  DEFAULT_PYTHON: "3.13"
+  ALL_PYTHON_VERSIONS: "['3.13']"
   # 10.3 is the oldest supported version
   # - 10.3.32 is the version currently shipped with Synology (as of 17 Feb 2022)
   # 10.6 is the current long-term-support

.github/workflows/translations.yml

@@ -10,7 +10,7 @@ on:
       - "**strings.json"
 
 env:
-  DEFAULT_PYTHON: "3.12"
+  DEFAULT_PYTHON: "3.13"
 
 jobs:
   upload:

.github/workflows/wheels.yml

@@ -17,7 +17,7 @@ on:
       - "script/gen_requirements_all.py"
 
 env:
-  DEFAULT_PYTHON: "3.12"
+  DEFAULT_PYTHON: "3.13"
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.ref_name}}