build: Updating mediawiki/mediawiki-codesniffer to 32.0.0

The following sniffs are failing and were disabled:
* MediaWiki.Usage.ExtendClassUsage.FunctionConfigUsage

Additional changes:
* Dropped .php5 and .inc files from .phpcs.xml (T200956).
* Added the `wikimedia/mediawiki` profile in .eslintrc.json (T262222).
* Removed global `mw`, included via `wikimedia/mediawiki` profile (T262222).
* Dropped the emtpy global definition in .eslintrc.json.

Change-Id: I9a87a358cb5336c9d18261985209c1f845337160

.eslintrc.json

@@ -2,9 +2,7 @@
 	"root": true,
 	"extends": [
 		"wikimedia/client",
-		"wikimedia/jquery"
+		"wikimedia/jquery",
-	],
+		"wikimedia/mediawiki"
-	"globals": {
+	]
-		"mw": false
-	}
 }

.phpcs.xml

@@ -2,11 +2,12 @@
 <ruleset>
 	<rule ref="./vendor/mediawiki/mediawiki-codesniffer/MediaWiki">
 		<exclude name="MediaWiki.Files.ClassMatchesFilename.NotMatch" />
+		<exclude name="MediaWiki.Usage.ExtendClassUsage.FunctionConfigUsage" />
 		<exclude name="MediaWiki.Commenting.FunctionComment.MissingDocumentationProtected" />
 		<exclude name="MediaWiki.Commenting.FunctionComment.MissingDocumentationPublic" />
 		<exclude name="Squiz.Scope.MethodScope.Missing" />
 	</rule>
 	<file>.</file>
-	<arg name="extensions" value="php,php5,inc" />
+	<arg name="extensions" value="php" />
 	<arg name="encoding" value="UTF-8" />
 </ruleset>

composer.json

@@ -1,6 +1,6 @@
 {
 	"require-dev": {
-		"mediawiki/mediawiki-codesniffer": "31.0.0",
+		"mediawiki/mediawiki-codesniffer": "32.0.0",
 		"mediawiki/minus-x": "1.1.0",
 		"php-parallel-lint/php-console-highlighter": "0.5.0",
 		"php-parallel-lint/php-parallel-lint": "1.2.0"