Unable to build the sample Dockerfile with multi architecture

[avolcoff]

using this sample:
https://github.com/aws-samples/amazon-cloudwatch-container-insights/blob/master/cloudwatch-agent-dockerfile/Dockerfile

when building it with this command :
docker buildx build --platform linux/amd64,linux/arm64/v8 .

I'm getting this error:
#13 117.7 dpkg: error processing archive amazon-cloudwatch-agent.deb (--install):
#13 117.7 package architecture (amd64) does not match system (arm64)
#13 117.7 Errors were encountered while processing:
#13 117.7 amazon-cloudwatch-agent.deb

Could you assist to resolve it?