Bump bson from 1.1.1 to 1.1.6

Bumps [bson](https://github.com/mongodb/js-bson) from 1.1.1 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/commits/v1.1.6)

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

yarn.lock

@@ -1685,9 +1685,9 @@ browserslist@^4.6.0, browserslist@^4.6.2, browserslist@^4.6.3:
     node-releases "^1.1.25"
 
 bson@^1.1.1, bson@~1.1.1:
-  version "1.1.1"
-  resolved "https://registry.npmjs.org/bson/-/bson-1.1.1.tgz"
-  integrity sha512-jCGVYLoYMHDkOsbwJZBCqwMHyH4c+wzgI9hG7Z6SZJRXWr+x58pdIbm2i9a/jFGCkRJqRUr8eoI7lDWa0hTkxg==
+  version "1.1.6"
+  resolved "https://registry.yarnpkg.com/bson/-/bson-1.1.6.tgz#fb819be9a60cd677e0853aee4ca712a785d6618a"
+  integrity sha512-EvVNVeGo4tHxwi8L6bPj3y3itEvStdwvvlojVxxbyYfoaxJ6keLgrTuKdyfEAszFK+H3olzBuafE0yoh0D1gdg==
 
 buffer-alloc-unsafe@^1.1.0:
   version "1.1.0"