chore(deps): update docker.io/homeassistant/home-assistant docker tag to v2026

- Update FROM docker.io/homeassistant/home-assistant:2025.11.2 to 2025.12.4
- Remove temporary sed patch that modified scripts/check_config.py (no longer needed)

Dockerfile

@@ -1,4 +1,4 @@
-FROM docker.io/homeassistant/home-assistant:2025.11.3
+FROM docker.io/homeassistant/home-assistant:2026.1.3
 
 #COPY src/ /usr/src/homeassistant/homeassistant/
 
@@ -10,9 +10,6 @@ RUN mkdir -p /usr/local/config/custom_components && \
     wget -q -O - https://install.hacs.xyz | bash - && \
     cat /usr/local/config/custom_components/hacs/manifest.json | jq -r .requirements[] | xargs /usr/local/bin/python3 -m pip install --quiet --no-cache-dir --upgrade --constraint /usr/src/homeassistant/homeassistant/package_constraints.txt --find-links https://wheels.home-assistant.io/musllinux/ --prefer-binary
 
-# NOTE: Fix https://github.com/home-assistant/core/pull/155885
-RUN sed -i 's/args, unknown = parser.parse_known_args(script_args)/args, unknown = parser.parse_known_args()/g' /usr/src/homeassistant/homeassistant/scripts/check_config.py
-
 ADD entrypoint.sh /entrypoint.sh
 
 ENV PYTHONUSERBASE /config/deps