Type of request: This is a ...

[x] bug report
[ ] feature request

Detailed description

The docker image 0.12.12 seems to have python 3.7 instead of 3.8 installed.
With 0.12.11, everything works as expected.

Expected behavior

localstack java utils can read the port configuration from the localstack config file.

Actual behavior

When using localstack java utils, startup fails since the port configuration can not be loaded.
This config is expected to be in /opt/code/localstack/.venv/lib/python3.8/, but in the 0.12.12 image only /opt/code/localstack/.venv/lib/python3.7 is present.

Steps to reproduce

1. Install localstack
2. Install localstack-java-utils 0.2.11 via maven
3. Write a test (for me the error came up when requesting a s3 service)

Command used to start LocalStack

Done by the localstack-java-utils plugin