fix: GH-23 support macos docker users

> Key Changes:
> * Set up Docker Buildx: Added `install: true` to ensure Buildx is installed.
> * Specify Platforms: Added `platforms: linux/amd64,linux/arm64` to the `docker/build-push-action` step to build for both `amd64` and `arm64` architectures.
> — Microsoft CoPilot

.github/workflows/build.yml

@@ -23,6 +23,8 @@ jobs:
       -
         name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v2
+        with:
+          install: true
       -
         name: Checkout repo
         uses: actions/checkout@v3
@@ -54,6 +56,7 @@ jobs:
         uses: docker/build-push-action@v3
         with:
           push: true
+          platforms: linux/amd64,linux/arm64
           tags: taccwma/tacc-docs:latest,taccwma/tacc-docs:${{ steps.vars.outputs.sha_short }},taccwma/tacc-docs:${{ steps.vars.outputs.ref_short }}
       -
         name: Post build status in slack