Update dependency @testing-library/jest-dom to v6.4.2 (#2149)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

yarn.lock

@@ -3416,9 +3416,9 @@
     pretty-format "^27.0.2"
 
 "@testing-library/jest-dom@^6.0.0":
-  version "6.4.1"
-  resolved "https://registry.yarnpkg.com/@testing-library/jest-dom/-/jest-dom-6.4.1.tgz#1b0cc222c3a59f9cba2cc7947dc5fadc01210a37"
-  integrity sha512-Z7qMM3J2Zw5H/nC2/5CYx5YcuaD56JmDFKNIozZ89VIo6o6Y9FMhssics4e2madEKYDNEpZz3+glPGz0yWMOag==
+  version "6.4.2"
+  resolved "https://registry.yarnpkg.com/@testing-library/jest-dom/-/jest-dom-6.4.2.tgz#38949f6b63722900e2d75ba3c6d9bf8cffb3300e"
+  integrity sha512-CzqH0AFymEMG48CpzXFriYYkOjk6ZGPCLMhW9e9jg3KMCn5OfJecF8GtGW7yGfR/IgCe3SX8BSwjdzI6BBbZLw==
   dependencies:
     "@adobe/css-tools" "^4.3.2"
     "@babel/runtime" "^7.9.2"