Babashka REPL environment vars not getting set

[reifymark]

When I launch a bb repl the environment from the configuration doesn't appear to be getting set. Steps to reproduce:

• Follow these steps to configure a bb repl
• In the Environment block in the final dialog set some environment variable (e.g. ABC=123)
• Run the bb REPL
• Try accessing the env var with (System/getenv "ABC")

It returns nil when it should be 123.