Code-only flavor of the CLI v2 WITHOUT the built-in Python runtime

**Is your feature request related to a problem? Please describe.**

Related to https://github.com/aws/aws-cli/issues/4685

Just about everything we do uses Alpine Linux, and that makes the CLI v2 with the built-in, glibc-only binary unusable. It's a non-starter.

**Describe the solution you'd like**

Could we get a code-only flavor of the CLI v2 WITHOUT the built-in Python runtime? That way, I can bring my own Python interpreter that is compatible with Alpine Linux.

**Describe alternatives you've considered**

I've already tried installing the backwards-compatibility libraries for glibc into Alpine Linux, but the changes are too low-level for that to work.

**Additional context**

Related to https://github.com/aws/aws-cli/issues/4685