chore(deps): update dependency canonical/snapcraft to v8.2.8 (core22-8)

[renovate[bot]]

This PR contains the following updates:

Package	Update	Change
canonical/snapcraft	patch	8.2.7 -> 8.2.8

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Release Notes

canonical/snapcraft (canonical/snapcraft)

### [`v8.2.8`](https://togithub.com/canonical/snapcraft/releases/tag/8.2.8) [Compare Source](https://togithub.com/canonical/snapcraft/compare/8.2.7...8.2.8) #### Core This release fixes a behavior with patchelf for `core24` snaps and temporarily disables the dotnet plugin for `core24` snaps. ##### core24 Patchelf behavior has been corrected so shared libraries from the host system are not loaded for `core24` snaps with classic confinement. This is done with `patchelf --no-default-lib` when [patchelf is enabled](https://snapcraft.io/docs/how-to-classic). ##### Plugins ##### dotnet The [dotnet plugin](https://snapcraft.io/docs/dotnet-plugin) for core24 is being redesigned and has been temporarily disabled until the rewrite is complete. #### What's Changed - tests: fix flutter spread test by [@​mr-cal](https://togithub.com/mr-cal) in [https://github.com/canonical/snapcraft/pull/4808](https://togithub.com/canonical/snapcraft/pull/4808) - do not load system libraries for classic core24 snaps, bump craft-parts, unregister dotnet by [@​mr-cal](https://togithub.com/mr-cal) in [https://github.com/canonical/snapcraft/pull/4809](https://togithub.com/canonical/snapcraft/pull/4809) **Full Changelog**: https://github.com/canonical/snapcraft/compare/8.2.7...8.2.8

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