Bump bson from 1.1.3 to 1.1.6 in /addon (#28)

Bumps [bson](https://github.com/mongodb/js-bson) from 1.1.3 to 1.1.6.
- [Release notes](https://github.com/mongodb/js-bson/releases)
- [Changelog](https://github.com/mongodb/js-bson/blob/v1.1.6/HISTORY.md)
- [Commits](https://github.com/mongodb/js-bson/compare/v1.1.3...v1.1.6)

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

addon/package-lock.json

@@ -260,9 +260,9 @@
       }
     },
     "bson": {
-      "version": "1.1.3",
-      "resolved": "https://registry.npmjs.org/bson/-/bson-1.1.3.tgz",
-      "integrity": "sha512-TdiJxMVnodVS7r0BdL42y/pqC9cL2iKynVwA0Ho3qbsQYr428veL3l7BQyuqiw+Q5SqqoT0m4srSY/BlZ9AxXg=="
+      "version": "1.1.6",
+      "resolved": "https://registry.npmjs.org/bson/-/bson-1.1.6.tgz",
+      "integrity": "sha512-EvVNVeGo4tHxwi8L6bPj3y3itEvStdwvvlojVxxbyYfoaxJ6keLgrTuKdyfEAszFK+H3olzBuafE0yoh0D1gdg=="
     },
     "buffer-writer": {
       "version": "2.0.0",