Bump @openzeppelin/test-helpers from 0.5.4 to 0.5.5 (#2127)

Bumps [@openzeppelin/test-helpers](https://github.com/OpenZeppelin/openzeppelin-test-helpers) from 0.5.4 to 0.5.5.
- [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/v0.5.4...v0.5.5)

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

Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

package-lock.json

@@ -1848,16 +1848,16 @@
       }
     },
     "@openzeppelin/test-helpers": {
-      "version": "0.5.4",
-      "resolved": "https://registry.npmjs.org/@openzeppelin/test-helpers/-/test-helpers-0.5.4.tgz",
-      "integrity": "sha512-sSjft0CcmC6Pwsd/j1uakk2MLamEH4mmphVlF5hzUUVyoxL0KGCbxQgBoLoEpUbw2M9HtFAEMJJPGccEcb9Cog==",
+      "version": "0.5.5",
+      "resolved": "https://registry.npmjs.org/@openzeppelin/test-helpers/-/test-helpers-0.5.5.tgz",
+      "integrity": "sha512-jTSCQojQ0Q7FBMN3Me7o0OIVuRnfHRR9TcE+ZlfbSfdqrHkFLwSfeDHSNWtQGlF1xPQR5r3iRI0ccsCrN+JblA==",
       "dev": true,
       "requires": {
         "@openzeppelin/contract-loader": "^0.4.0",
         "@truffle/contract": "^4.0.35",
         "ansi-colors": "^3.2.3",
         "chai": "^4.2.0",
-        "chai-bn": "^0.2.0",
+        "chai-bn": "^0.2.1",
         "ethjs-abi": "^0.2.1",
         "lodash.flatten": "^4.4.0",
         "semver": "^5.6.0",
@@ -5085,9 +5085,9 @@
       }
     },
     "chai-bn": {
-      "version": "0.2.0",
-      "resolved": "https://registry.npmjs.org/chai-bn/-/chai-bn-0.2.0.tgz",
-      "integrity": "sha512-h+XqIFikre13N3uiZSc50PZ0VztVjuD/Gytle07EUFkbd8z31tWp37DLAsR1dPozmOLA3yu4hi3IFjJDQ5CKBg==",
+      "version": "0.2.1",
+      "resolved": "https://registry.npmjs.org/chai-bn/-/chai-bn-0.2.1.tgz",
+      "integrity": "sha512-01jt2gSXAw7UYFPT5K8d7HYjdXj2vyeIuE+0T/34FWzlNcVbs1JkPxRu7rYMfQnJhrHT8Nr6qjSf5ZwwLU2EYg==",
       "dev": true
     },
     "chalk": {

package.json

@@ -49,7 +49,7 @@
     "@openzeppelin/gsn-helpers": "^0.2.3",
     "@openzeppelin/gsn-provider": "^0.1.10",
     "@openzeppelin/test-environment": "^0.1.3",
-    "@openzeppelin/test-helpers": "^0.5.4",
+    "@openzeppelin/test-helpers": "^0.5.5",
     "chai": "^4.2.0",
     "eslint": "^6.5.1",
     "eslint-config-standard": "^14.1.0",