build: Updating mediawiki/mediawiki-phan-config to 0.10.6

Change-Id: Ia1ff817e8baf4606bae255e1c4a95b5e156076e5

composer.json

@@ -1,7 +1,7 @@
 {
 	"require-dev": {
 		"mediawiki/mediawiki-codesniffer": "34.0.0",
-		"mediawiki/mediawiki-phan-config": "0.10.5",
+		"mediawiki/mediawiki-phan-config": "0.10.6",
 		"mediawiki/minus-x": "1.1.0",
 		"php-parallel-lint/php-console-highlighter": "0.5.0",
 		"php-parallel-lint/php-parallel-lint": "1.2.0"