build: Updating mediawiki/mediawiki-codesniffer to 29.0.0

Additional changes:
* Also sorted "composer fix" command to run phpcbf last.
* Enable eslint caching.

Change-Id: Ic0705bd299e8ecc4898ad28baeee44ee32c41176

.gitignore

@@ -1,3 +1,4 @@
 /node_modules
 /vendor
 /composer.lock
+/.eslintcache

Gruntfile.js

@@ -8,7 +8,8 @@ module.exports = function ( grunt ) {
 	grunt.initConfig( {
 		eslint: {
 			options: {
-				extensions: [ '.js', '.json' ]
+				extensions: [ '.js', '.json' ],
+				cache: true
 			},
 			all: [
 				'**/*.js{,on}',

composer.json

@@ -1,15 +1,15 @@
 {
 	"require-dev": {
 		"jakub-onderka/php-parallel-lint": "1.0.0",
-		"mediawiki/mediawiki-codesniffer": "28.0.0",
+		"mediawiki/mediawiki-codesniffer": "29.0.0",
 		"jakub-onderka/php-console-highlighter": "0.4.0",
 		"mediawiki/minus-x": "0.3.2",
 		"mediawiki/mediawiki-phan-config": "0.9.0"
 	},
 	"scripts": {
 		"fix": [
-			"phpcbf",
-			"minus-x fix ."
+			"minus-x fix .",
+			"phpcbf"
 		],
 		"test": [
 			"parallel-lint . --exclude node_modules --exclude vendor",