chore: add createMany npm script to execute createManyConcurrentRequests.js

Author: MantisClone

package.json

@@ -11,7 +11,8 @@
     "pay": "node src/payRequest.js",
     "declare": "node src/declarePaymentSentAndReceived.js",
     "delegate": "node src/delegateDeclarePaymentSentAndReceived.js",
-    "hinkal-deposit": "node src/depositToHinkalShieldedAddress.js"
+    "hinkal-deposit": "node src/depositToHinkalShieldedAddress.js",
+    "createMany": "node src/createManyConcurrentRequests.js"
   },
   "author": "",
   "license": "ISC",