build: Updating npm dependencies

* eslint-config-wikimedia: 0.22.1 → 0.24.0
* grunt: 1.5.3 → 1.6.1
* stylelint-config-wikimedia: 0.13.0 → 0.14.0
  The following rules are failing and were disabled:
  * selector-pseudo-element-colon-notation

Change-Id: Ic78a5aa7fca2d917054eb26b5c8d46c008870484

.stylelintrc.json

@@ -2,6 +2,7 @@
 	"extends": "stylelint-config-wikimedia",
 	"rules": {
 		"unit-disallowed-list": null,
-		"declaration-property-unit-disallowed-list": null
+		"declaration-property-unit-disallowed-list": null,
+		"selector-pseudo-element-colon-notation": null
 	}
 }

modules/ext.RevisionSlider.SliderView.js

@@ -269,22 +269,28 @@ $.extend( SliderView.prototype, {
 		) );
 	},
 
-	/** @returns {number} */
+	/** @return {number} */
 	getOlderPointerPos: function () {
 		return this.pointerOlder.getPosition();
 	},
 
-	/** @returns {number} */
+	/** @return {number} */
 	getNewerPointerPos: function () {
 		return this.pointerNewer.getPosition();
 	},
 
-	/** @returns {number} */
+	/**
+	 * @param {number} pos
+	 * @return {number}
+	 */
 	setOlderPointerPos: function ( pos ) {
 		return this.pointerOlder.setPosition( pos );
 	},
 
-	/** @returns {number} */
+	/**
+	 * @param {number} pos
+	 * @return {number}
+	 */
 	setNewerPointerPos: function ( pos ) {
 		return this.pointerNewer.setPosition( pos );
 	},

package.json

@@ -14,13 +14,13 @@
 		"@wdio/local-runner": "7.4.6",
 		"@wdio/mocha-framework": "7.13.2",
 		"@wdio/sync": "7.4.6",
-		"eslint-config-wikimedia": "0.22.1",
-		"grunt": "1.5.3",
+		"eslint-config-wikimedia": "0.24.0",
+		"grunt": "1.6.1",
 		"grunt-banana-checker": "0.10.0",
 		"grunt-eslint": "24.0.0",
 		"grunt-stylelint": "0.18.0",
 		"mwbot": "1.0.10",
-		"stylelint-config-wikimedia": "0.13.0",
+		"stylelint-config-wikimedia": "0.14.0",
 		"svgo": "2.8.0",
 		"wdio-mediawiki": "1.2.0"
 	}