Update dependency friendsofphp/php-cs-fixer to v3.68.3

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
friendsofphp/php-cs-fixer	3.68.1 -> 3.68.3

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Release Notes

PHP-CS-Fixer/PHP-CS-Fixer (friendsofphp/php-cs-fixer)

v3.68.3

Compare Source

• fix: NativeTypeDeclarationCasingFixer - fix for enum with "Mixed" case (#​8395)

v3.68.2

Compare Source

• fix: NativeTypeDeclarationCasingFixer - fix for promoted properties, enums, false and mixed (#​8386)
• chore: ensure that dev-tools dependencies are bumped (#​8389)
• chore: experiment to see if we can auto-shrink the lock after dependabot (#​8383)
• chore: experiment to see if we can auto-shrink the lock after dependabot /part (#​8384)
• chore: Get rid of Docker warnings during build (#​8379)
• chore: remove redundant check (#​8391)
• chore: update types (#​8390)
• CI: stale - update close msg to emphasize contribution over demand (#​8385)
• deps: bump phpcompatibility/phpcompatibility-symfony from 1.2.1 to 1.2.2 in /dev-tools (#​8378)
• deps: bump the phpstan group in /dev-tools with 4 updates (#​8387)
• refactor: Use native Yaml::parseFile() instead of custom method (#​8380)

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