Bump big.js from 6.2.1 to 6.2.2

Bumps [big.js](https://github.com/MikeMcl/big.js) from 6.2.1 to 6.2.2.
- [Changelog](https://github.com/MikeMcl/big.js/blob/master/CHANGELOG.md)
- [Commits](https://github.com/MikeMcl/big.js/commits)

---
updated-dependencies:
- dependency-name: big.js
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

package.json

@@ -124,7 +124,7 @@
     "ajv-keywords": "^5.1.0",
     "any-date-parser": "^1.5.4",
     "bcryptjs": "^2.4.3",
-    "big.js": "^6.2.1",
+    "big.js": "^6.2.2",
     "body-parser": "^1.20.3",
     "bootstrap": "3.4.1",
     "child-process-promise": "^2.2.1",

yarn.lock

@@ -6640,10 +6640,10 @@ big.js@^5.2.2:
   resolved "https://registry.yarnpkg.com/big.js/-/big.js-5.2.2.tgz#65f0af382f578bcdc742bd9c281e9cb2d7768328"
   integrity sha512-vyL2OymJxmarO8gxMr0mhChsO9QGwhynfuu4+MHTAW6czfq9humCB7rKpUjDd9YUiDPU4mzpyupFSvOClAwbmQ==
 
-big.js@^6.2.1:
-  version "6.2.1"
-  resolved "https://registry.yarnpkg.com/big.js/-/big.js-6.2.1.tgz#7205ce763efb17c2e41f26f121c420c6a7c2744f"
-  integrity sha512-bCtHMwL9LeDIozFn+oNhhFoq+yQ3BNdnsLSASUxLciOb1vgvpHsIO1dsENiGMgbb4SkP5TrzWzRiLddn8ahVOQ==
+big.js@^6.2.2:
+  version "6.2.2"
+  resolved "https://registry.yarnpkg.com/big.js/-/big.js-6.2.2.tgz#be3bb9ac834558b53b099deef2a1d06ac6368e1a"
+  integrity sha512-y/ie+Faknx7sZA5MfGA2xKlu0GDv8RWrXGsmlteyJQ2lvoKv9GBK/fpRMc2qlSoBAgNxrixICFCBefIq8WCQpQ==
 
 binary-extensions@^2.0.0:
   version "2.1.0"