Bump react-tooltip from 4.2.20 to 4.2.21 in /dashboard (#2910)

Bumps [react-tooltip](https://github.com/wwayne/react-tooltip) from 4.2.20 to 4.2.21.
- [Release notes](https://github.com/wwayne/react-tooltip/releases)
- [Changelog](https://github.com/wwayne/react-tooltip/blob/master/CHANGELOG.md)
- [Commits](ReactTooltip/react-tooltip@v4.2.20...v4.2.21)

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

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

dashboard/package.json

@@ -62,7 +62,7 @@
     "react-switch": "^6.0.0",
     "react-tabs": "^3.2.2",
     "react-test-renderer": "^16.2.0",
-    "react-tooltip": "^4.2.20",
+    "react-tooltip": "^4.2.21",
     "react-transition-group": "^4.4.1",
     "redux": "^4.1.0",
     "redux-devtools-extension": "^2.13.9",

dashboard/yarn.lock

@@ -12046,10 +12046,10 @@ react-test-renderer@^16.0.0-0, react-test-renderer@^16.2.0:
     react-is "^16.8.6"
     scheduler "^0.19.1"
 
-react-tooltip@^4.2.20:
-  version "4.2.20"
-  resolved "https://registry.yarnpkg.com/react-tooltip/-/react-tooltip-4.2.20.tgz#c8e88651c90d89ce6be73c54319f9e3207449bb7"
-  integrity sha512-+ZmRPcOUbaUe3bg9mom3ingTcbr4Lro3qDrzH4Z4HI7UcgJNoSSt7hCB/dvWuV4vR1vSZ/C14q7Xzyu89utk3w==
+react-tooltip@^4.2.21:
+  version "4.2.21"
+  resolved "https://registry.yarnpkg.com/react-tooltip/-/react-tooltip-4.2.21.tgz#840123ed86cf33d50ddde8ec8813b2960bfded7f"
+  integrity sha512-zSLprMymBDowknr0KVDiJ05IjZn9mQhhg4PRsqln0OZtURAJ1snt1xi5daZfagsh6vfsziZrc9pErPTDY1ACig==
   dependencies:
     prop-types "^15.7.2"
     uuid "^7.0.3"