Disable PyREPL for > 3.13

[anthonykim1]

We can enable Python shell integration, and allow user to use lsp completion for Python REPL, for those using Python > 3.13 if we disable PyREPL for users before the actual fix.

We would disable PyREPL by exporting PYTHON_BASIC_REPL=1 in user's environment variable collection.
Then we would allow Python shell integration for people with Python > 3.13.

We should also eventually make Python shell integration enabled as default true.