bump numpy==1.23.2 in environment-py38.yml #338

[ras44]

Proposed changes

As described in #338 (comment), the py38 environment leads to an error in the example. This can be resolved by bumping the numpy version to 1.23.2 for the envs/environment-py38.yml file, as is done in this PR.

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Further comments

[CLAassistant]

All committers have signed the CLA.

[ras44]

Hi @jeongyoonlee

I've signed the CLA:

Not sure why it's showing up as not signed yet when running checks. Could you let me know if I'm missing something?

[jeongyoonlee]

LGTM. Thanks!