ci(docker): pass PKG_VSN to Dockerfile to avoid calling pkg-vsn.sh

.github/workflows/build_and_push_docker_images.yaml

@@ -178,4 +178,5 @@ jobs:
         build-args: |
           EMQX_NAME=${{ matrix.profile }}${{ steps.pre-meta.outputs.img_suffix }}
           EXTRA_DEPS=${{ steps.pre-meta.outputs.extra_deps }}
+          PKG_VSN=${{ inputs.version }}
         file: ${{ matrix.os[2] }}

deploy/docker/Dockerfile

@@ -5,6 +5,7 @@ FROM ${BUILD_FROM} AS builder
 COPY . /emqx
 
 ARG EMQX_NAME=emqx
+ARG PKG_VSN
 ENV EMQX_RELUP=false
 
 RUN export PROFILE=${EMQX_NAME%%-elixir} \