Update dependency @testing-library/dom to v6.4.0

Author: renovate-bot

react-cinema-app/package.json

@@ -31,7 +31,7 @@
     "validator": "11.1.0"
   },
   "devDependencies": {
-    "@testing-library/dom": "6.3.0",
+    "@testing-library/dom": "6.4.0",
     "@testing-library/jest-dom": "4.1.0",
     "@testing-library/react": "9.1.4",
     "prettier": "1.18.2"

react-cinema-app/yarn.lock

@@ -1205,10 +1205,10 @@
     "@svgr/plugin-svgo" "^4.3.1"
     loader-utils "^1.2.3"
 
-"@testing-library/dom@6.3.0":
-  version "6.3.0"
-  resolved "https://registry.yarnpkg.com/@testing-library/dom/-/dom-6.3.0.tgz#27376ddb61094cb43177af4c5def17aaedddd99b"
-  integrity sha512-CNtBr4JycDQznfpSK5oID5uhJhkmA2TH13gbyFNyaX+BFaOUzC6PQGLcVDvzxOm5EN1gvu4B8Oe8e8a3CfUIGw==
+"@testing-library/dom@6.4.0":
+  version "6.4.0"
+  resolved "https://registry.yarnpkg.com/@testing-library/dom/-/dom-6.4.0.tgz#aaf7fceba1272516fc7c5ac0716a24f63ea6cdaa"
+  integrity sha512-uQFwl+mIH9THk9Q9qVZKBgoL/6ahVEQu9bDeOmY5yB8uc62L2Z9eYs0g7zNTdMsg4I0bOdPPMs/sNETYP5+PEw==
   dependencies:
     "@babel/runtime" "^7.5.5"
     "@sheerun/mutationobserver-shim" "^0.3.2"