(chore): Bump the composer group with 4 updates

Bumps the composer group with 4 updates: [tijsverkoyen/css-to-inline-styles](https://github.com/tijsverkoyen/CssToInlineStyles), [orchestra/testbench-core](https://github.com/orchestral/testbench-core), [orchestra/workbench](https://github.com/orchestral/workbench) and [phpstan/phpstan](https://github.com/phpstan/phpstan).


Updates `tijsverkoyen/css-to-inline-styles` from 2.2.7 to 2.3.0
- [Release notes](https://github.com/tijsverkoyen/CssToInlineStyles/releases)
- [Changelog](https://github.com/tijsverkoyen/CssToInlineStyles/blob/master/CHANGELOG.md)
- [Commits](tijsverkoyen/CssToInlineStyles@v2.2.7...v2.3.0)

Updates `orchestra/testbench-core` from 8.31.0 to 8.31.1
- [Release notes](https://github.com/orchestral/testbench-core/releases)
- [Changelog](https://github.com/orchestral/testbench-core/blob/9.x/CHANGELOG-8.x.md)
- [Commits](orchestral/testbench-core@v8.31.0...v8.31.1)

Updates `orchestra/workbench` from 8.15.0 to 8.15.2
- [Release notes](https://github.com/orchestral/workbench/releases)
- [Changelog](https://github.com/orchestral/workbench/blob/9.x/CHANGELOG-8.x.md)
- [Commits](orchestral/workbench@v8.15.0...v8.15.2)

Updates `phpstan/phpstan` from 1.12.12 to 1.12.13
- [Release notes](https://github.com/phpstan/phpstan/releases)
- [Changelog](https://github.com/phpstan/phpstan/blob/2.1.x/CHANGELOG.md)
- [Commits](phpstan/phpstan@1.12.12...1.12.13)

---
updated-dependencies:
- dependency-name: tijsverkoyen/css-to-inline-styles
  dependency-type: indirect
  update-type: version-update:semver-minor
  dependency-group: composer
- dependency-name: orchestra/testbench-core
  dependency-type: indirect
  update-type: version-update:semver-patch
  dependency-group: composer
- dependency-name: orchestra/workbench
  dependency-type: indirect
  update-type: version-update:semver-patch
  dependency-group: composer
- dependency-name: phpstan/phpstan
  dependency-type: indirect
  update-type: version-update:semver-patch
  dependency-group: composer
...

Signed-off-by: dependabot[bot] <[email protected]>