Bump @openzeppelin/test-helpers from 0.5.1 to 0.5.3 (#1960)

Bumps [@openzeppelin/test-helpers](https://github.com/OpenZeppelin/openzeppelin-test-helpers) from 0.5.1 to 0.5.3.
- [Release notes](https://github.com/OpenZeppelin/openzeppelin-test-helpers/releases)
- [Changelog](https://github.com/OpenZeppelin/openzeppelin-test-helpers/blob/master/CHANGELOG.md)
- [Commits](https://github.com/OpenZeppelin/openzeppelin-test-helpers/compare/v0.5.1...v0.5.3)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

package-lock.json

@@ -431,13 +431,14 @@
       }
     },
     "@openzeppelin/test-helpers": {
-      "version": "0.5.1",
-      "resolved": "https://registry.npmjs.org/@openzeppelin/test-helpers/-/test-helpers-0.5.1.tgz",
-      "integrity": "sha512-xt1g96TTfXxexHdYNiCkTQFpxajJx8/ZIygfWWjwHjfC+Ovuml5t93f1GkjtiN36FSepPuP+qvGgISkGvKnEbw==",
+      "version": "0.5.3",
+      "resolved": "https://registry.npmjs.org/@openzeppelin/test-helpers/-/test-helpers-0.5.3.tgz",
+      "integrity": "sha512-Zq7hAS/FIDwd5CUdh4TX4MxQmIQGCUSI72U80J7+3fjXawRTSTYMjOu9KHpvSHX5mcCWlFF3qbM7b2dHjgZ26g==",
       "dev": true,
       "requires": {
         "@truffle/contract": "^4.0.35",
         "ansi-colors": "^3.2.3",
+        "chai": "^4.2.0",
         "chai-bn": "^0.2.0",
         "ethjs-abi": "^0.2.1",
         "lodash.flatten": "^4.4.0",
@@ -3562,9 +3563,9 @@
       }
     },
     "ethers": {
-      "version": "4.0.37",
-      "resolved": "https://registry.npmjs.org/ethers/-/ethers-4.0.37.tgz",
-      "integrity": "sha512-B7bDdyQ45A5lPr6k2HOkEKMtYOuqlfy+nNf8glnRvWidkDQnToKw1bv7UyrwlbsIgY2mE03UxTVtouXcT6Vvcw==",
+      "version": "4.0.38",
+      "resolved": "https://registry.npmjs.org/ethers/-/ethers-4.0.38.tgz",
+      "integrity": "sha512-l7l7RIfk2/rIFgRRVLFY3H06S9dhXXPUdMlYm6SCelB6oG+ABmoRig7xSVOLcHLayBfSwssjAAYLKxf1jWhbuQ==",
       "dev": true,
       "requires": {
         "@types/node": "^10.3.2",
@@ -3580,9 +3581,9 @@
       },
       "dependencies": {
         "@types/node": {
-          "version": "10.14.21",
-          "resolved": "https://registry.npmjs.org/@types/node/-/node-10.14.21.tgz",
-          "integrity": "sha512-nuFlRdBiqbF+PJIEVxm2jLFcQWN7q7iWEJGsBV4n7v1dbI9qXB8im2pMMKMCUZe092sQb5SQft2DHfuQGK5hqQ==",
+          "version": "10.14.22",
+          "resolved": "https://registry.npmjs.org/@types/node/-/node-10.14.22.tgz",
+          "integrity": "sha512-9taxKC944BqoTVjE+UT3pQH0nHZlTvITwfsOZqyc+R3sfJuxaTtxWjfn1K2UlxyPcKHf0rnaXcVFrS9F9vf0bw==",
           "dev": true
         },
         "elliptic": {

package.json

@@ -46,7 +46,7 @@
   "devDependencies": {
     "@openzeppelin/gsn-helpers": "^0.2.0",
     "@openzeppelin/gsn-provider": "^0.1.8",
-    "@openzeppelin/test-helpers": "^0.5.1",
+    "@openzeppelin/test-helpers": "^0.5.3",
     "chai": "^4.2.0",
     "concurrently": "^5.0.0",
     "eslint": "^6.5.1",