fix(docker): Docker python-translation-build (apache#32163)

Dockerfile

@@ -23,11 +23,14 @@ ARG PY_VER=3.11-slim-bookworm
 # If BUILDPLATFORM is null, set it to 'amd64' (or leave as is otherwise).
 ARG BUILDPLATFORM=${BUILDPLATFORM:-amd64}
 
+# Include translations in the final build
+ARG BUILD_TRANSLATIONS="false"
+
 ######################################################################
 # superset-node-ci used as a base for building frontend assets and CI
 ######################################################################
 FROM --platform=${BUILDPLATFORM} node:20-bullseye-slim AS superset-node-ci
-ARG BUILD_TRANSLATIONS="false" # Include translations in the final build
+ARG BUILD_TRANSLATIONS
 ENV BUILD_TRANSLATIONS=${BUILD_TRANSLATIONS}
 ARG DEV_MODE="false"           # Skip frontend build in dev mode
 ENV DEV_MODE=${DEV_MODE}
@@ -122,6 +125,9 @@ ENV PATH="/app/.venv/bin:${PATH}"
 ######################################################################
 FROM python-base AS python-translation-compiler
 
+ARG BUILD_TRANSLATIONS
+ENV BUILD_TRANSLATIONS=${BUILD_TRANSLATIONS}
+
 # Install Python dependencies using docker/pip-install.sh
 COPY requirements/translations.txt requirements/
 RUN --mount=type=cache,target=/root/.cache/uv \