build: Updating mediawiki/mediawiki-phan-config to 0.15.0

Change-Id: I97b35224c32ccd4bf895de03788362e815953bb1

Author: libraryupgrader

composer.json

@@ -24,7 +24,7 @@
 	},
 	"require-dev": {
 		"mediawiki/mediawiki-codesniffer": "45.0.0",
-		"mediawiki/mediawiki-phan-config": "0.14.0",
+		"mediawiki/mediawiki-phan-config": "0.15.0",
 		"php-parallel-lint/php-parallel-lint": "1.4.0",
 		"phpunit/phpunit": "9.6.21"
 	},