Update dependency doctrine/coding-standard to v12

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
doctrine/coding-standard (source)	require-dev	major	^11.1.0 -> ^12.0.0

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Release Notes

doctrine/coding-standard (doctrine/coding-standard)

### [`v12.0.0`](https://togithub.com/doctrine/coding-standard/releases/tag/12.0.0) [Compare Source](https://togithub.com/doctrine/coding-standard/compare/11.1.0...12.0.0) ##### Release Notes for [12.0.0](https://togithub.com/doctrine/coding-standard/milestone/28) Backwards incompatible release (major) ##### 12.0.0 - Total issues resolved: **0** - Total pull requests resolved: **4** - Total contributors: **2** ##### New rule - [311: Configure "SlevomatCodingStandard.Commenting.AnnotationName" rule](https://togithub.com/doctrine/coding-standard/pull/311) thanks to [@​phansys](https://togithub.com/phansys) - [310: Disallow string property fetch](https://togithub.com/doctrine/coding-standard/pull/310) thanks to [@​greg0ire](https://togithub.com/greg0ire) ##### Dependencies - [312: Bump "slevomat/coding-standard" to ^8.11](https://togithub.com/doctrine/coding-standard/pull/312) thanks to [@​phansys](https://togithub.com/phansys) ##### Improvement - [313: Set Bash explicitly as default shell in `Makefile`](https://togithub.com/doctrine/coding-standard/pull/313) thanks to [@​phansys](https://togithub.com/phansys)

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