deps: update dependency keyring to v23.9.3 (#476)

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This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [keyring](https://togithub.com/jaraco/keyring) | `==23.4.1` -> `==23.9.3` | [![age](https://badges.renovateapi.com/packages/pypi/keyring/23.9.3/age-slim)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://badges.renovateapi.com/packages/pypi/keyring/23.9.3/adoption-slim)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://badges.renovateapi.com/packages/pypi/keyring/23.9.3/compatibility-slim/23.4.1)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://badges.renovateapi.com/packages/pypi/keyring/23.9.3/confidence-slim/23.4.1)](https://docs.renovatebot.com/merge-confidence/) |

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