Alternative to Docker for deploying the demo

For user who doesn't want to or can't use Docker for deploying the demo, finch can be used instead by replacing 'docker' by 'finch' in the lineage_api.tf at line 21.

The replacing block should look like this :
```
resource "null_resource" "ecr_image" {
triggers = {
src_hash = data.archive_file.lambda.output_sha
}
provisioner "local-exec" {
command = <