fix: allow Workshop runtime config writes

apps/workshop/Dockerfile

@@ -28,7 +28,7 @@ FROM ${POCKETBASE_IMAGE} AS pocketbase-runtime
 ENV PORT=8090
 RUN addgroup -S pocketbase && adduser -S -G pocketbase pocketbase
 COPY apps/workshop/entrypoint.sh /usr/local/bin/workshop-entrypoint
-RUN chmod 755 /usr/local/bin/workshop-entrypoint && mkdir -p /pb_data /pb_public && chown pocketbase:pocketbase /pb_data
+RUN chmod 755 /usr/local/bin/workshop-entrypoint && mkdir -p /pb_data /pb_public && chown pocketbase:pocketbase /pb_data /pb_public
 ENTRYPOINT ["workshop-entrypoint"]
 
 FROM pocketbase-runtime AS development