Bump bson from 1.1.0 to 4.0.3

Bumps [bson](https://github.com/mongodb/js-bson) from 1.1.0 to 4.0.3.
- [Release notes](https://github.com/mongodb/js-bson/releases)
- [Changelog](https://github.com/mongodb/js-bson/blob/master/HISTORY.md)
- [Commits](mongodb/js-bson@v1.1.0...v4.0.3)

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

Author: dependabot-preview[bot]

package-lock.json

@@ -20,7 +20,7 @@
     "check"
   ],
   "devDependencies": {
-    "bson": "^1.0.4",
+    "bson": "^4.0.3",
     "chai": "^4.1.2",
     "eslint-config-mongodb-js": "^2.2.0",
     "mocha": "^4.0.1",