Bump atob from 2.0.3 to 2.1.2

Bumps [atob](https://github.com/coolaj86/node-browser-compat) from 2.0.3 to 2.1.2.
- [Release notes](https://github.com/coolaj86/node-browser-compat/releases)
- [Commits](https://github.com/coolaj86/node-browser-compat/commits)

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

Author: dependabot[bot]

yarn.lock

@@ -348,8 +348,8 @@ asynckit@^0.4.0:
   resolved "https://registry.yarnpkg.com/asynckit/-/asynckit-0.4.0.tgz#c79ed97f7f34cb8f2ba1bc9790bcc366474b4b79"
 
 atob@^2.0.0:
-  version "2.0.3"
-  resolved "https://registry.yarnpkg.com/atob/-/atob-2.0.3.tgz#19c7a760473774468f20b2d2d03372ad7d4cbf5d"
+  version "2.1.2"
+  resolved "https://registry.yarnpkg.com/atob/-/atob-2.1.2.tgz#6d9517eb9e030d2436666651e86bd9f6f13533c9"
 
 aws-sign2@~0.6.0:
   version "0.6.0"