Bump flatted in the npm_and_yarn group across 1 directory (#570)

Bumps the npm_and_yarn group with 1 update in the / directory: [flatted](https://github.com/WebReflection/flatted).


Updates `flatted` from 3.3.4 to 3.4.2
- [Commits](WebReflection/flatted@v3.3.4...v3.4.2)

---
updated-dependencies:
- dependency-name: flatted
  dependency-version: 3.4.2
  dependency-type: indirect
  dependency-group: npm_and_yarn
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Alexandre Baldé <alexandre.balde@parity.io>

Author: dependabot[bot]

yarn.lock

@@ -3022,9 +3022,9 @@ __metadata:
   linkType: hard
 
 "flatted@npm:^3.3.3":
-  version: 3.3.4
-  resolution: "flatted@npm:3.3.4"
-  checksum: 10c0/d1f33426e9714063a65a90940acdb2897eceb810230a58e496d90334dcecfa81a90135bbc660df6827939865d57cb4a2afab14dcd3d505e16a8484fd73bf9642
+  version: 3.4.2
+  resolution: "flatted@npm:3.4.2"
+  checksum: 10c0/a65b67aae7172d6cdf63691be7de6c5cd5adbdfdfe2e9da1a09b617c9512ed794037741ee53d93114276bff3f93cd3b0d97d54f9b316e1e4885dde6e9ffdf7ed
   languageName: node
   linkType: hard