feat: bump 1.12.3 + cleanup

Dockerfile

@@ -1,6 +1,6 @@
 FROM jcabillot/opencode:latest
 
-ARG OPENCHAMBER_WEB_VERSION=1.11.3
+ARG OPENCHAMBER_WEB_VERSION=1.12.3
 
 ENV NPM_CONFIG_UPDATE_NOTIFIER=false \
   NPM_CONFIG_LOGLEVEL=warn \
@@ -8,7 +8,8 @@ ENV NPM_CONFIG_UPDATE_NOTIFIER=false \
 
 USER root
 
-RUN apt-get update \
+RUN rm -rf /tmp/* \
+  && apt-get update \
   && apt-get install -y --no-install-recommends python3 make g++ \
   && rm -rf /var/lib/apt/lists/* \
   && npm install -g --no-fund --no-audit "@openchamber/web@${OPENCHAMBER_WEB_VERSION}" \