Composer: update various version constraints

... after the tooling has also updated to the PHPCSStandards version of PHPCS.

Refs:
* https://github.com/PHPCSStandards/PHPCSUtils/releases
* https://github.com/PHPCSStandards/PHPCSExtra/releases

.github/CONTRIBUTING.md

@@ -40,8 +40,8 @@ When you introduce new `public` sniff properties, or your sniff extends a class
 ## Pre-requisites
 * WordPress-Coding-Standards
 * PHP_CodeSniffer 3.8.0 or higher
-* PHPCSUtils 1.0.8 or higher
-* PHPCSExtra 1.2.0 or higher
+* PHPCSUtils 1.0.9 or higher
+* PHPCSExtra 1.2.1 or higher
 * PHPUnit 4.x, 5.x, 6.x or 7.x
 
 The WordPress Coding Standards use the `PHP_CodeSniffer` native unit test framework for unit testing the sniffs.

composer.json

@@ -22,8 +22,8 @@
 		"ext-tokenizer": "*",
 		"ext-xmlreader": "*",
 		"squizlabs/php_codesniffer": "^3.8.0",
-		"phpcsstandards/phpcsutils": "^1.0.8",
-		"phpcsstandards/phpcsextra": "^1.2.0"
+		"phpcsstandards/phpcsutils": "^1.0.9",
+		"phpcsstandards/phpcsextra": "^1.2.1"
 	},
 	"require-dev": {
 		"phpcompatibility/php-compatibility": "^9.0",