add util polyfill (#6150)

Signed-off-by: Marin Petrunic <marin.petrunic@gmail.com>
Co-authored-by: Alex <alex.luu@mail.utoronto.ca>

packages/web3-validator/package.json

@@ -46,6 +46,7 @@
 	},
 	"dependencies": {
 		"is-my-json-valid": "^2.20.6",
+		"util": "^0.12.5",
 		"ethereum-cryptography": "^2.0.0",
 		"web3-errors": "^1.0.0-rc.1",
 		"web3-types": "^1.0.0-rc.1"

yarn.lock

@@ -11583,6 +11583,17 @@ util@^0.12.0:
     safe-buffer "^5.1.2"
     which-typed-array "^1.1.2"
 
+util@^0.12.5:
+  version "0.12.5"
+  resolved "https://registry.yarnpkg.com/util/-/util-0.12.5.tgz#5f17a6059b73db61a875668781a1c2b136bd6fbc"
+  integrity sha512-kZf/K6hEIrWHI6XqOFUiiMa+79wE/D8Q+NCNAWclkyg3b4d2k7s0QGepNjiABc+aR3N1PAyHL7p6UcLY6LmrnA==
+  dependencies:
+    inherits "^2.0.3"
+    is-arguments "^1.0.4"
+    is-generator-function "^1.0.7"
+    is-typed-array "^1.1.3"
+    which-typed-array "^1.1.2"
+
 utils-merge@1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/utils-merge/-/utils-merge-1.0.1.tgz#9f95710f50a267947b2ccc124741c1028427e713"