Use match() instead of switch/case. (#487)

* Use match() instead of switch/case.

Also improve docblock type

* Fix CS error

* Remove impossible "default" case

Merge pull request #484 from cakephp/add-rfc7231

Add toRfc7231String() helper

Merge pull request #485 from cakephp/return-deprecation

Fix createFromTimestamp() deprecation message

Merge branch '3.next' into 3.x

Merge pull request #475 from cakephp/require-php84

Require PHP 8.4 for createFromTimestamp() siganture

Merge pull request #460 from Harfusha/2.x

Fix wrong return types

Merge pull request #454 from cakephp/php-8.4

Fix error on PHP 8.4

Merge pull request #446 from cakephp/fix-445

Fix off by one errors in diffFiltered

Merge pull request #441 from cakephp/endofday-micro

Add microseconds to Chronos::endOfDay()

Merge pull request #438 from cakephp/use-chronosdate

Use ChronosDate in docs