Bump clean-css from 4.1.9 to 4.1.11 in /example/react

Bumps [clean-css](https://github.com/jakubpawlowicz/clean-css) from 4.1.9 to 4.1.11.
- [Release notes](https://github.com/jakubpawlowicz/clean-css/releases)
- [Changelog](https://github.com/jakubpawlowicz/clean-css/blob/master/History.md)
- [Commits](clean-css/clean-css@v4.1.9...v4.1.11)

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

Author: dependabot[bot]

example/react/yarn.lock

@@ -2060,8 +2060,9 @@ class-utils@^0.3.5:
     static-extend "^0.1.1"
 
 [email protected]:
-  version "4.1.9"
-  resolved "https://registry.yarnpkg.com/clean-css/-/clean-css-4.1.9.tgz#35cee8ae7687a49b98034f70de00c4edd3826301"
+  version "4.1.11"
+  resolved "https://registry.yarnpkg.com/clean-css/-/clean-css-4.1.11.tgz#2ecdf145aba38f54740f26cefd0ff3e03e125d6a"
+  integrity sha1-Ls3xRaujj1R0DybO/Q/z4D4SXWo=
   dependencies:
     source-map "0.5.x"
 
@@ -6000,10 +6001,10 @@ neo-async@^2.5.0:
   resolved "https://registry.yarnpkg.com/neo-async/-/neo-async-2.6.0.tgz#b9d15e4d71c6762908654b5183ed38b753340835"
   integrity sha512-MFh0d/Wa7vkKO3Y3LlacqAEeHK0mckVqzDieUKTT+KGxi+zIpeVsFxymkIiRpbpDziHc290Xr9A1O4Om7otoRA==
 
-netlify-identity-widget@^1.4.2:
-  version "1.4.14"
-  resolved "https://registry.yarnpkg.com/netlify-identity-widget/-/netlify-identity-widget-1.4.14.tgz#32539380b85ce98881f3cea2d59111cb031ea994"
-  integrity sha512-F2wAEgfJDjtNcV9vt+GlishUgi2q5IJoeP1VLEZwH9Kq4vUunZByR/2R5Bb6XpCLuiXoT0hNY7zUMCxGBKbl6Q==
+netlify-identity-widget@^1.4.14:
+  version "1.5.5"
+  resolved "https://registry.yarnpkg.com/netlify-identity-widget/-/netlify-identity-widget-1.5.5.tgz#e9ba8d7676263507106060236cf55c2992f425e4"
+  integrity sha512-gCILbXMVn83TiRaiPCWk93ynyyYgxn8N/KoO+WOfyGZaNgq7gMMPtn7vo6VDe/ZczgyCn9DRlm3artNoj78/MQ==
 
 nice-try@^1.0.4:
   version "1.0.5"