Update canonical/charming-actions action to v2.3.0

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
canonical/charming-actions	action	minor	2.2.5 -> 2.3.0

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Release Notes

canonical/charming-actions

### [`v2.3.0`](https://togithub.com/canonical/charming-actions/releases/tag/2.3.0) [Compare Source](https://togithub.com/canonical/charming-actions/compare/2.2.5...2.3.0) ##### What's Changed - Update README.md by [@​beliaev-maksim](https://togithub.com/beliaev-maksim) in [https://github.com/canonical/charming-actions/pull/94](https://togithub.com/canonical/charming-actions/pull/94) - Adds support for pre-built charms in the `upload-charm` action by [@​gruyaume](https://togithub.com/gruyaume) in [https://github.com/canonical/charming-actions/pull/96](https://togithub.com/canonical/charming-actions/pull/96) ##### New Contributors - [@​gruyaume](https://togithub.com/gruyaume) made their first contribution in [https://github.com/canonical/charming-actions/pull/96](https://togithub.com/canonical/charming-actions/pull/96) **Full Changelog**: https://github.com/canonical/charming-actions/compare/2.2.5...2.3.0

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