Added the word integer as the test failed.

Author: Maryanne-K

Sprint-3/2-practice-tdd/repeat-str.js

@@ -1,6 +1,6 @@
-function repeatStr(str,count) {
+function repeatStr(str, count) {
   if (count < 0) {
-    throw new Error("Count must be a non-negative");
+    throw new Error("Count must be a non-negative integer");
   }
   return str.repeat(count);
 }

package.json

@@ -9,7 +9,7 @@
   "keywords": [],
   "author": "Code Your Future",
   "license": "ISC",
-  "dependencies": {
-    "jest": "^29.7.0"
+  "devDependencies": {
+    "jest": "^30.2.0"
   }
-}
+}