chore(deps): update canonical/charming-actions action to v2.6.1

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
canonical/charming-actions	action	patch	2.6.0 -> 2.6.1

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Release Notes

canonical/charming-actions (canonical/charming-actions)

### [`v2.6.1`](https://togithub.com/canonical/charming-actions/releases/tag/2.6.1) [Compare Source](https://togithub.com/canonical/charming-actions/compare/2.6.0...2.6.1) ##### What's Changed - Support charms using charmcraft extensions by [@​weiiwang01](https://togithub.com/weiiwang01) in [https://github.com/canonical/charming-actions/pull/142](https://togithub.com/canonical/charming-actions/pull/142) ##### New Contributors - [@​weiiwang01](https://togithub.com/weiiwang01) made their first contribution in [https://github.com/canonical/charming-actions/pull/142](https://togithub.com/canonical/charming-actions/pull/142) **Full Changelog**: https://github.com/canonical/charming-actions/compare/2.6.0...2.6.1

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