feat: add VERSION to ci-base-image (#1735)

# Goal
The goal of this PR is to add a version to the `ci-base-image` container
when it is published to DockerHub.
`IMAGE_VERSION` is added to the publishing jobs and stored as a `LABEL`
in the container itself.
`IMAGE_VERSION` will be baselined as `1.0.0`
`docker inspect` can be used to check the version of a container and
should be in-sync with the tag version.

A follow on PR will be used to update the github workflows to use the
version number.

# Discussion
The current workflows pull using the defaults, which is the `latest`
tag.
Adding a version will allows us better traceability and better
maintenance moving forward.

---------

Co-authored-by: Matthew Orris <--help>

.github/workflows/merge-pr.yml

@@ -81,6 +81,7 @@ jobs:
     name: Publish CI Base Image
     env:
       IMAGE_NAME: ci-base-image
+      IMAGE_VERSION: 1.0.0
       BRANCH_NAME: main
     runs-on: ubuntu-20.04
     steps:
@@ -113,3 +114,5 @@ jobs:
           tags: |
             ${{steps.repo_slug.outputs.result}}/${{env.IMAGE_NAME}}:${{env.BRANCH_NAME}}
             ${{steps.repo_slug.outputs.result}}/${{env.IMAGE_NAME}}:latest
+            ${{steps.repo_slug.outputs.result}}/${{env.IMAGE_NAME}}:${{env.IMAGE_VERSION}}}
+          build-args: IMAGE_VERSION=${{env.IMAGE_VERSION}}

tools/ci/docker/ci-base-image.dockerfile

@@ -3,6 +3,8 @@ FROM --platform=linux/amd64 ubuntu:20.04
 ENV DEBIAN_FRONTEND=noninteractive
 LABEL maintainer="Frequency"
 LABEL description="Frequency CI base image"
+ARG IMAGE_VERSION
+LABEL version="{IMAGE_VERSION}"
 
 WORKDIR /ci
 RUN apt-get update && \
@@ -17,5 +19,6 @@ ENV RUSTUP_HOME="/root/.cargo"
 ENV CARGO_HOME="/root/.cargo"
 RUN rustup toolchain install nightly-2023-07-13
 RUN rustup target add x86_64-unknown-linux-gnu --toolchain nightly-2023-07-13
+RUN rustup target add wasm32-unknown-unknown --toolchain nightly-2023-07-13
 
 RUN git config --system --add safe.directory /__w/frequency/frequency