chore: update storybook ecosystem

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
@storybook/addon-a11y (source)	8.6.14 → 8.6.18
@storybook/addon-links (source)	8.6.14 → 8.6.18
@storybook/web-components (source)	7.6.20 → 7.6.24
storybook (source)	8.6.14 → 8.6.18

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Release Notes

storybookjs/storybook (@​storybook/addon-a11y)

v8.6.18

Compare Source

8.6.18

• Add request validation

v8.6.17

Compare Source

8.6.17

• Harden websocket connection

v8.6.16

Compare Source

8.6.16

• No-op release. No changes.

v8.6.15

Compare Source

• Core: Fix .env-file parsing, thanks @​jreinhold!

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Deployed to Azure Blob Storage: pr-5863

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[github-actions]

📚 Branch Preview Links

• Documentation Site (first-gen)
• Storybook (first-gen)
• Storybook (second-gen)

🔍 First Generation Visual Regression Test Results

When a visual regression test fails (or has previously failed while working on this branch), its results can be found in the following URLs:

• Spectrum | Light | Medium | LTR
• Spectrum | Dark | Large | RTL
• Express | Light | Medium | LTR
• Express | Dark | Large | RTL
• Spectrum-two | Light | Medium | LTR
• Spectrum-two | Dark | Large | RTL
• High Contrast Mode | Medium | LTR

Deployed to Azure Blob Storage: pr-5863

If the changes are expected, update the current_golden_images_cache hash in the circleci config to accept the new images. Instructions are included in that file.
If the changes are unexpected, you can investigate the cause of the differences and update the code accordingly.