Update Web Assets to support Drupal ~11.4.0
### Problem/Motivation
Web Assets declared `core_version_requirement: ~11.3.0` and required `drupal/core: ~11.3.0`. For the Webship 11.0.x release targeting Drupal ~11.4.0, the module must declare support for Drupal ~11.4.0.
### Proposed resolution
- Bump `core_version_requirement` in `webassets.info.yml` from `~11.3.0` to `~11.4.0`.
- Bump `drupal/core` in `composer.json` from `~11.3.0` to `~11.4.0`.
- Speed up the eslint/stylelint CI jobs (skip the composer build artifact, `.eslintignore` excludes vendor/.yarn, `yarn install --mode=skip-build`, lint cache).
### Checkpoints
- [x] File an issue
- [x] Update for used third party components
- [x] Testing to ensure no regression
- [ ] Automated unit testing coverage
- [x] Automated functional testing coverage
- [ ] UX/UI designer responsibilities
- [ ] Readability
- [ ] Accessibility
- [ ] Performance
- [ ] Security
- [ ] Documentation
- [x] Reviewed by human
- [x] Code review by maintainers
- [ ] Full testing and approval
- [x] Credit contributors
- [ ] Review with the product owner
- [x] Release Notes
- [x] Release
### API changes
None.
### Data model changes
None.
### Release notes snippet
Web Assets now supports Drupal ~11.4.0.
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