feat: support arm64 architecture for docker image (#24)

Signed-off-by: Shreyas <[email protected]>

.github/workflows/docker.yml

@@ -47,7 +47,7 @@ jobs:
           labels: |-
             org.opencontainers.image.source=https://github.com/${{ github.repository }}
             org.opencontainers.image.revision=${{ github.sha }}
-          platforms: linux/amd64
+          platforms: linux/amd64,linux/arm64
           push: ${{ github.event_name != 'pull_request' }}
           build-args: |
             GITVERSION=git-${{ steps.vars.outputs.git_revision }}