Advise users of self-hosted Windows runners how to resolve: "unable to get local issuer certificate" error

I'm using a self-hosted Windows 10 runner with GHES 3.6.5. The actions/setup-python@v4 step in my workflow fails with:
unable to get local issuer certificate. I presume I need to get a certificate from the server somewhere, install it in Windows and tell my self-hosted runner where to find it. But the instructions at https://github.com/actions/setup-python/blob/main/docs/advanced-usage.md#using-setup-python-with-a-self-hosted-runner do not say anything about certificates.

Description:
Add a section to the instructions for the setup-python action (possibly at https://github.com/actions/setup-python/blob/main/docs/advanced-usage.md#using-setup-python-with-a-self-hosted-runner) to explain how to resolve the unable to get local issuer certificate error. E.g., Please explain:

1. Where to get the certificate(s) from.
2. Where/how to install the certificate(s) in Windows.
3. How to configure a self-hosted runner so that it can find the certificates.

Justification:
Get the setup python task to work.

Are you willing to submit a PR?
No, sorry.

Update docs/advanced-usage.md in the self-hosted runner section. Explain where Windows users can obtain the required certificates, how to install them, and how to configure the runner to find them for the “unable to get local issuer certificate” error. Done means the instructions address all three requested steps and help the actions/setup-python@v4 workflow work on a self-hosted Windows runner.