chore(deps): update storybook monorepo to v8.6.12

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
@storybook/addon-actions (source)	8.6.11 -> 8.6.12
@storybook/addon-essentials (source)	8.6.11 -> 8.6.12
@storybook/addon-links (source)	8.6.11 -> 8.6.12
@storybook/addon-mdx-gfm (source)	8.6.11 -> 8.6.12
@storybook/vue3 (source)	8.6.11 -> 8.6.12
@storybook/vue3-vite (source)	8.6.11 -> 8.6.12
storybook (source)	8.6.11 -> 8.6.12

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Release Notes

storybookjs/storybook (@​storybook/addon-actions)

v8.6.12

Compare Source

storybookjs/storybook (@​storybook/addon-essentials)

v8.6.12

Compare Source

storybookjs/storybook (@​storybook/addon-links)

v8.6.12

Compare Source

• CLI: Only install Visual Test Addon if test feature is selected - #​30966, thanks @​ghengeveld!
• Core: Fix telemetry error on Storybook UI - #​30953, thanks @​yannbf!
• Ember: Fix ember-template-compiler import for ember 6+ - #​30682, thanks @​leoeuclids!
• Next: Update vite-plugin-storybook-nextjs to 2.0.0--canary.33.17a2310.0 - #​30997, thanks @​kasperpeulen!
• Svelte: Exclude node_modules from docgen - #​30981, thanks @​JReinhold!

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