Bump svgo from 2.0.3 to 2.1.0 (#12799)

Bumps [svgo](https://github.com/svg/svgo) from 2.0.3 to 2.1.0.
- [Release notes](https://github.com/svg/svgo/releases)
- [Changelog](https://github.com/svg/svgo/blob/master/CHANGELOG-old.md)
- [Commits](https://github.com/svg/svgo/compare/v2.0.3...v2.1.0)

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

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

package.json

@@ -137,7 +137,7 @@
     "sass-loader": "^10.1.1",
     "start-server-and-test": "^1.12.0",
     "style-loader": "^2.0.0",
-    "svgo": "2.0.3",
+    "svgo": "2.1.0",
     "webpack-bundle-analyzer": "^4.4.0",
     "webpack-dev-server": "^3.11.2"
   },

yarn.lock

@@ -2974,6 +2974,11 @@
     styled-system "^3.1.11"
     unfetch "^4.0.1"
 
+"@trysound/sax@0.1.1":
+  version "0.1.1"
+  resolved "https://registry.yarnpkg.com/@trysound/sax/-/sax-0.1.1.tgz#3348564048e7a2d7398c935d466c0414ebb6a669"
+  integrity sha512-Z6DoceYb/1xSg5+e+ZlPZ9v0N16ZvZ+wYMraFue4HYrE4ttONKtsvruIRf6t9TBR0YvSOfi1hUU0fJfBLCDYow==
+
 "@twilio/webrtc@4.3.2":
   version "4.3.2"
   resolved "https://registry.yarnpkg.com/@twilio/webrtc/-/webrtc-4.3.2.tgz#919520a870fdf8d87f915da47276710828e8fc5b"
@@ -18006,18 +18011,18 @@ supports-hyperlinks@^2.0.0:
     has-flag "^4.0.0"
     supports-color "^7.0.0"
 
-svgo@2.0.3:
-  version "2.0.3"
-  resolved "https://registry.yarnpkg.com/svgo/-/svgo-2.0.3.tgz#09bcc7f32e140d017a38c6dfe953b937232bb2cf"
-  integrity sha512-q6YtEaLXkPN1ARaifoENYPPweAbBV8YoqWg+8DFQ3xsImfyRIdBbr42Cqz4NZwCftmVJjh+m1rEK7ItRdLTxdg==
+svgo@2.1.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/svgo/-/svgo-2.1.0.tgz#1de9a194906fa414403f0f928685132c753f6f96"
+  integrity sha512-f5iEvWkSesVHPqBBc26s9/9LFKJZ+4aWPpOVX0uxXz/39SlNL4XuwfhOWsqOS5Q1j7Z6WLayCF/s1lISeAHjwA==
   dependencies:
+    "@trysound/sax" "0.1.1"
     chalk "^4.1.0"
     commander "^7.1.0"
     css-select "^3.1.2"
     css-select-base-adapter "^0.1.1"
     css-tree "^1.1.2"
     csso "^4.2.0"
-    sax "~1.2.4"
     stable "^0.1.8"
 
 svgo@^1.0.0: