Update syntatis/coding-standard requirement from ^1.2 to ^1.3

Updates the requirements on [syntatis/coding-standard](https://github.com/syntatis/phpcs-ruleset) to permit the latest version.
- [Release notes](https://github.com/syntatis/phpcs-ruleset/releases)
- [Commits](syntatis/phpcs-ruleset@v1.2.0...v1.3.0)

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

Signed-off-by: dependabot[bot] <[email protected]>

composer.json

@@ -37,7 +37,7 @@
 		"phpunit/phpunit": "^6.5 || ^7.5 || ^7.5 || ^9.6 || ^10.5 || ^11",
 		"rector/rector": "0.17.10",
 		"roots/wordpress": "^6.5",
-		"syntatis/coding-standard": "^1.2",
+		"syntatis/coding-standard": "^1.3",
 		"wp-phpunit/wp-phpunit": "^6.5",
 		"yoast/phpunit-polyfills": "^2.0"
 	},