chore(deps): update dependency mudblazor to v6.12.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
MudBlazor (source)	6.11.2 -> 6.12.0

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Release Notes

MudBlazor/MudBlazor (MudBlazor)

v6.12.0: MudBlazor 6.12.0

What's Changed

Addition of net8.0 target

• There is now a net8.0 native version of the library in addition to the existing net7.0 and net6.0 versions in the package. This is automatically selected depending on your applications target framework.
• Note you can still use older versions of the package in net8.0 without issue.

New Features

• MudAvatarGroup: Add MaxAvatarsTemplate by @​Kaerlon in https://github.com/MudBlazor/MudBlazor/pull/7896
• New Component: MudToggleGroup by @​mckaragoz in https://github.com/MudBlazor/MudBlazor/pull/7309
• New Component: MudToggleGroup by @​mckaragoz in https://github.com/MudBlazor/MudBlazor/pull/7948

Bug Fixes

• mudHelpers.js: Add missing closing bracket by @​REDECODE in https://github.com/MudBlazor/MudBlazor/pull/7940
• MudDataGrid: Fix ItemDrop Event Trigger Issue with Disabled ColumnsPanelReordering by @​peterthorpe81 in https://github.com/MudBlazor/MudBlazor/pull/7934
• MudTabs: Rightmost tab is not fully scrolled into view when active by @​TDroogers in https://github.com/MudBlazor/MudBlazor/pull/7876
• MudDatePicker: Setting date null doesn't clear invalid text by @​jacob7395 in https://github.com/MudBlazor/MudBlazor/pull/7866
• ToggleGroup: Improvements by @​mckaragoz in https://github.com/MudBlazor/MudBlazor/pull/7975

New Contributors

• @​Kaerlon made their first contribution in https://github.com/MudBlazor/MudBlazor/pull/7896
• @​REDECODE made their first contribution in https://github.com/MudBlazor/MudBlazor/pull/7940
• @​jacob7395 made their first contribution in https://github.com/MudBlazor/MudBlazor/pull/7866

Full Changelog: MudBlazor/MudBlazor@v6.11.2...v6.12.0

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🎉 This PR is included in version 1.0.0-alpha.142 🎉

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