bug fix - const to let in tests

Author: sandrabosk

starter-code/tests/FunctionsAndArraysSpec.js

@@ -49,7 +49,7 @@ describe('Finding Longest Word - findLongestWord', () => {
   });
 
   it('returns the longest occurrence when it has multiple words', () => {
-    const words = ['a', 'zab', '12abc', '$$abcd', 'abcde', 'ironhack'];
+    let words = ['a', 'zab', '12abc', '$$abcd', 'abcde', 'ironhack'];
     for (let i = 0; i < 10; i++) {
       words = shuffle(words);
       expect(findLongestWord(words)).toBe('ironhack');