Update dependency codemirror to v5.53.2

Author: renovate-bot

package.json

@@ -50,7 +50,7 @@
     "babel-polyfill": "6.26.0",
     "babel-preset-es2015": "6.24.1",
     "babel-preset-react": "6.24.1",
-    "codemirror": "5.52.2",
+    "codemirror": "5.53.2",
     "css-loader": "3.5.0",
     "eslint": "6.8.0",
     "eslint-plugin-react": "7.5.1",

yarn.lock

@@ -2008,9 +2008,9 @@ code-point-at@^1.0.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/code-point-at/-/code-point-at-1.1.0.tgz#0d070b4d043a5bea33a2f1a40e2edb3d9a4ccf77"
 
-codemirror@5.52.2:
-  version "5.52.2"
-  resolved "https://registry.yarnpkg.com/codemirror/-/codemirror-5.52.2.tgz#c29e1f7179f85eb0dd17c0586fa810e4838ff584"
+codemirror@5.53.2:
+  version "5.53.2"
+  resolved "https://registry.yarnpkg.com/codemirror/-/codemirror-5.53.2.tgz#9799121cf8c50809cca487304e9de3a74d33f428"
 
 collection-visit@^1.0.0:
   version "1.0.0"