chore: Add arm build

Author: PixNyb

.github/workflows/deploy.yml

@@ -144,6 +144,7 @@ jobs:
           push: true
           provenance: mode=max
           sbom: true
+          platforms: linux/amd64,linux/arm64
           tags: |
             ${{ needs.setup.outputs.lowercase }}/authentication-proxy:${{ needs.setup.outputs.tag_name }}
             ghcr.io/${{ needs.setup.outputs.lowercase }}/authentication-proxy:${{ needs.setup.outputs.tag_name }}