Revert update webpack packages

[mmtr]

Proposed Changes

Partially reverts #91367 because it was breaking the command-palette-wp-admin app (unsure if it was breaking other apps too).

Why are these changes being made?

To fix the command-palette-wp-admin app

Testing Instructions

• In your sandbox run install-plugin.sh command-palette-wp-admin trunk
• Sandbox widgets.wp.com and a simple site
• Go to /wp-admin on your sandboxed site
• Open the command palette (⌘ + K)
• Observe the JS error: build.min.js?ver=20240604:6 Uncaught TypeError: Cannot read properties of undefined (reading 'jsx')
• Apply now changes from this PR: install-plugin.sh command-palette-wp-admin revert/webpack-packages-updates
• Reload /wp-admin and open the command palette
• Make sure it works as expected without any JS error

Pre-merge Checklist

• Has the general commit checklist been followed? (PCYsg-hS-p2)
• Have you written new tests for your changes?
• Have you tested the feature in Simple (P9HQHe-k8-p2), Atomic (P9HQHe-jW-p2), and self-hosted Jetpack sites (PCYsg-g6b-p2)?
• Have you checked for TypeScript, React or other console errors?
• Have you used memoizing on expensive computations? More info in Memoizing with create-selector and Using memoizing selectors and Our Approach to Data
• Have we added the "[Status] String Freeze" label as soon as any new strings were ready for translation (p4TIVU-5Jq-p2)?
• For changes affecting Jetpack: Have we added the "[Status] Needs Privacy Updates" label if this pull request changes what data or activity we track or use (p4TIVU-aUh-p2)?

[github-actions]

Calypso Live (direct link)

https://calypso.live?image=registry.a8c.com/calypso/app:build-109891

Jetpack Cloud live (direct link)

https://calypso.live?image=registry.a8c.com/calypso/app:build-109891&env=jetpack

Automattic for Agencies live (direct link)

https://calypso.live?image=registry.a8c.com/calypso/app:build-109891&env=a8c-for-agencies

[matticbot]

This PR modifies the release build for the following Calypso Apps:

For info about this notification, see here: PCYsg-OT6-p2

• command-palette-wp-admin
• editing-toolkit
• o2-blocks
• wpcom-block-editor

To test WordPress.com changes, run install-plugin.sh $pluginSlug revert/webpack-packages-updates on your sandbox.

[matticbot]

This PR does not affect the size of JS and CSS bundles shipped to the user's browser.

Generated by performance advisor bot at iscalypsofastyet.com.

[tyxla]

👍

Thanks @mmtr!

Happy to investigate what's the cause if you don't have it on your plate already.

[mmtr]

Failing E2E tests seem unrelated (see p1717487713672789-slack-C02DQP0FP)

Happy to investigate what's the cause if you don't have it on your plate already.

It'd be great if you could follow up on this. Thanks @tyxla!

[tyxla]

Investigating and will submit a fix in #91454.

I've reverted to the supposedly broken state, but I can't reproduce. I'm following your (inverted) steps from above with the reverted branch, but can't reproduce it. Could you try with #91454 and let me know what I might be missing?

Command I'm testing with:

install-plugin.sh command-palette-wp-admin revert-91443-revert/webpack-packages-updates

[tyxla]

I managed to reproduce it and will work on a fix, stay tuned.

[tyxla]

Seems like it will have to wait until 6.6 is released, see WordPress/gutenberg#62202