Update dependency slevomat/coding-standard to v8.7.1

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
slevomat/coding-standard	require-dev	minor	8.6.4 -> 8.7.1

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Release Notes

slevomat/coding-standard

### [`v8.7.1`](https://togithub.com/slevomat/coding-standard/releases/tag/8.7.1) [Compare Source](https://togithub.com/slevomat/coding-standard/compare/8.7.0...8.7.1) ## 🐛 Fixes - `SlevomatCodingStandard.TypeHints.ParameterTypeHintSpacing`: Fixed false positive when parameter has attribute but no type hint ### [`v8.7.0`](https://togithub.com/slevomat/coding-standard/releases/tag/8.7.0) [Compare Source](https://togithub.com/slevomat/coding-standard/compare/8.6.4...8.7.0) ## 🔧 Improvements - Support for `phpstan/phpdoc-parser` 1.15 - Support for `phpstan/phpdoc-parser` 1.14 - `SlevomatCodingStandard.Attributes.AttributesOrder`: New option `orderAlphabetically` - `SlevomatCodingStandard.Attributes.AttributesOrder`: Attributes could be ordered by mask (thanks to [@​alexndlm](https://togithub.com/alexndlm)) ## 🐛 Fixes - `SlevomatCodingStandard.Attributes.AttributeAndTargetSpacing`: Fixed fixer

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