[Fix]: Use of array-includes for env under es6

Author: makotot

src/rules/img-redundant-alt.js

@@ -8,6 +8,7 @@
 // ----------------------------------------------------------------------------
 
 import { getProp, getLiteralPropValue } from 'jsx-ast-utils';
+import includes from 'array-includes';
 import { generateObjSchema, arraySchema } from '../util/schemas';
 import getElementType from '../util/getElementType';
 import isHiddenFromScreenReader from '../util/isHiddenFromScreenReader';
@@ -30,7 +31,7 @@ function containsRedundantWord(value, redundantWords) {
   const isASCII = /[\x20-\x7F]+/.test(value);
 
   if (isASCII) {
-    return value.split(/\s+/).some((valueWord) => lowercaseRedundantWords.includes(valueWord.toLowerCase()));
+    return value.split(/\s+/).some((valueWord) => includes(lowercaseRedundantWords, valueWord.toLowerCase()));
   }
   return lowercaseRedundantWords.some((redundantWord) => value.toLowerCase().includes(redundantWord));
 }