chore(database): change env to build arg

Author: duanhongyi

Dockerfile

@@ -3,12 +3,14 @@ FROM registry.drycc.cc/drycc/base:${CODENAME}
 
 COPY rootfs/usr /usr/
 COPY rootfs/entrypoint.sh /entrypoint.sh
-ENV PG_MAJOR=17 \
-  PG_MINOR=6 \
-  PYTHON_VERSION="3.13" \
+
+
+ARG PYTHON_VERSION="3.13" \
   POSTGRES_EXPORTER_VERSION="0.17.1"
 
-ENV HOME /data
+ENV HOME /data \
+  PG_MAJOR=17 \
+  PG_MINOR=6
 ENV PGDATA $HOME/$PG_MAJOR
 
 RUN install-packages vim gcc \