chore: set docker build dir and path_to_dockerfile

Author: hsilan

.github/workflows/ecr-release.yml

@@ -10,8 +10,8 @@ permissions:
   id-token: write # This is required for requesting the JWT
 
 env:
-  path_to_dockerfile: "/DockerFile"
-  docker_build_dir: "/"
+  path_to_dockerfile: "DockerFile"
+  docker_build_dir: "."
   aws_region: "us-east-1"
   ecr_repository_name: "o4w4w0v6/aws-durable-execution-emulator"