Release: Prerelease alpha 7.6.0-alpha.4

[github-actions]

This is an automated pull request that bumps the version from 7.6.0-alpha.3 to 7.6.0-alpha.4.
Once this pull request is merged, it will trigger a new release of version 7.6.0-alpha.4.
If you're not a core maintainer with permissions to release you can ignore this pull request.

To do

Before merging the PR, there are a few QA steps to go through:

• Add the "freeze" label to this PR, to ensure it doesn't get automatically forced pushed by new changes.
• Add the "ci:daily" label to this PR, to trigger the full test suite to run on this PR.

And for each change below:

1. Ensure the change is appropriate for the version bump. E.g. patch release should only contain patches, not new or de-stabilizing features. If a change is not appropriate, revert the PR.
2. Ensure the PR is labeled correctly with one of: "BREAKING CHANGE", "feature request", "bug", "maintenance", "dependencies", "documentation", "build", "unknown".
3. Ensure the PR title is correct, and follows the format "[Area]: [Summary]", e.g. "React: Fix hooks in CSF3 render functions". If it is not correct, change the title in the PR.
   • Areas include: React, Vue, Core, Docs, Controls, etc.
   • First word of summary indicates the type: “Add”, “Fix”, “Upgrade”, etc.
   • The entire title should fit on a line

This is a list of all the PRs merged and commits pushed directly to next, that will be part of this release:

• 🐛 Bug: CLI: Ensure errors with opening the browser are caught #24668
• 🐛 Bug: UI: Fix button contrast-ratio #24525 (will also be patched)
• 🐛 Bug: UI: Update zIndex on NotificationList to fix the notification not being clickable in certain cases #24602
• 📦 Dependencies: Dependencies: Update browserify-sign transitive dependency #24674
• 📦 Dependencies: Dependencies: Update nx dependencies to v17 #24671
• 📦 Dependencies: Dependencies: Update @babel/traverse and @babel/core to fix vulnerability #24670
• 🐛 Bug: Next.js: Fix forwarding ref for Image component #24648
• ✨ Feature Request: CLI: Use @storybook/test in template stories #24393
• 🔧 Maintenance: Maintenance: Split renderers preview entrypoints #24623
• 🐛 Bug: Next.js: Add avif support #24611
• 🐛 Bug: CLI: Ignore addon-onboarding when checking versions #24634
• 🐛 Bug: Controls: Improve accessibility of BooleanControl for screen readers #24418
• ✨ Feature Request: Theming: Add theme variable to set the preview background color #24575
• 🐛 Bug: CLI: Catch when prettier failed to prettify main and preview config files #24604 (will also be patched)
• 📦 Dependencies: Babel: Update all @babel/* dependencies #24610
• 📝 Documentation: Storybook Test: Add readme #24678
• ⚠️ Direct commit: Fix minor typo a02b85d89d355bdf49843984df0c18480aedae2b
• 📝 Documentation: GitHub Pages publish guide #24527 (will also be patched)
• 📝 Documentation: Docs: Fix links to indexers API #24649 (will also be patched)
• 📝 Documentation: Docs: Fix formatting #24646
• 📝 Documentation: Docs: Publish Storybook remove irrelevant parenthesis #24640
• 📝 Documentation: Docs: add new snippet to CodeSnippets paths #24540
• 🏗️ Build: Release tooling: Fix ensure-next-ahead step in publish script for empty commits #24617
• 📝 Documentation: Docs: Update CHANGELOG.md #24616

If you've made any changes doing the above QA (change PR titles, revert PRs), manually trigger a re-generation of this PR with this workflow and wait for it to finish. It will wipe your progress in this to do, which is expected.

Feel free to manually commit any changes necessary to this branch after you've done the last re-generation, following the Make Manual Changes section in the docs, especially if you're making changes to the changelog.

When everything above is done:

• Merge this PR
• Follow the run of the publish action

---

Generated changelog

7.6.0-alpha.4

• CLI: Ensure errors with opening the browser are caught - #24668, thanks @ xueyawei!
• Babel: Update all @babel/* dependencies - #24610, thanks @ valentinpalkovic!
• CLI: Catch when prettier failed to prettify main and preview config files - #24604, thanks @ kasperpeulen!
• CLI: Ignore addon-onboarding when checking versions - #24634, thanks @ JReinhold!
• CLI: Use @storybook/test in template stories - #24393, thanks @ yannbf!
• Controls: Improve accessibility of BooleanControl for screen readers - #24418, thanks @ danielmarcano!
• Dependencies: Update @babel/traverse and @babel/core to fix vulnerability - #24670, thanks @ valentinpalkovic!
• Dependencies: Update browserify-sign transitive dependency - #24674, thanks @ valentinpalkovic!
• Dependencies: Update nx dependencies to v17 - #24671, thanks @ valentinpalkovic!
• Maintenance: Split renderers preview entrypoints - #24623, thanks @ ndelangen!
• Next.js: Add avif support - #24611, thanks @ valentinpalkovic!
• Next.js: Fix forwarding ref for Image component - #24648, thanks @ valentinpalkovic!
• Theming: Add theme variable to set the preview background color - #24575, thanks @ JReinhold!
• UI: Fix button contrast-ratio - #24525, thanks @ maheshchandra10!
• UI: Update zIndex on NotificationList to fix the notification not being clickable in certain cases - #24602, thanks @ yoshi2no!