homeassistant: Install newer python version if required

roles/homeassistant/defaults/main.yml

@@ -0,0 +1,3 @@
+---
+
+ha_python_version: '3.12'

roles/homeassistant/tasks/main.yml

@@ -1 +1,5 @@
 ---
+
+- name: Install python if required
+  ansible.builtin.include_tasks: python_312.yml
+  when: ha_python_version == '3.12'

roles/homeassistant/tasks/python_312.yml

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+---
+
+- name: Python 3.12 | add GPG signing key
+  become: true
+  ansible.builtin.apt_key:
+    url: "https://pascalroeleven.nl/deb-pascalroeleven.gpg"
+    state: present
+    validate_certs: true
+  tags: install
+
+- name: Python 3.12 | add official repository
+  become: true
+  ansible.builtin.apt_repository:
+    repo: "deb http://deb.pascalroeleven.nl/python3.12 bookworm-backports main"
+    state: present
+    filename: python312
+    update_cache: true
+  tags: install
+
+- name: Python 3.12 | establish dependencies
+  become: true
+  ansible.builtin.apt:
+    name: "{{ item }}"
+    state: present
+  loop: "{{ python312_dependencies }}"
+  tags: install

roles/homeassistant/vars/main.yml

@@ -0,0 +1,6 @@
+---
+
+python312_dependencies:
+  - python3.12
+  - python3.12-venv
+  - python3.12-dev