Update corpus/coding-standard requirement from ^0.7.0 to ^0.8.0

Updates the requirements on [corpus/coding-standard](https://github.com/CorpusPHP/CodingStandard) to permit the latest version.
- [Release notes](https://github.com/CorpusPHP/CodingStandard/releases)
- [Commits](CorpusPHP/CodingStandard@v0.7.0...v0.8.0)

---
updated-dependencies:
- dependency-name: corpus/coding-standard
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <support@github.com>

composer.json

@@ -14,7 +14,7 @@
 		"phpunit/phpunit": "4.* | ~8.5 | ^9.0",
 		"friendsofphp/php-cs-fixer": "^3.16",
 		"squizlabs/php_codesniffer": "^3.6",
-		"corpus/coding-standard": "^0.7.0",
+		"corpus/coding-standard": "^0.8.0",
 		"donatj/mddoc": "^0.8.0"
 	},
 	"license": "MIT",