chore(deps): bump @metamask/rpc-errors from 6.1.0 to 6.2.1 (#258)

Bumps [@metamask/rpc-errors](https://github.com/MetaMask/rpc-errors) from 6.1.0 to 6.2.1.
- [Release notes](https://github.com/MetaMask/rpc-errors/releases)
- [Changelog](https://github.com/MetaMask/rpc-errors/blob/main/CHANGELOG.md)
- [Commits](MetaMask/rpc-errors@v6.1.0...v6.2.1)

---
updated-dependencies:
- dependency-name: "@metamask/rpc-errors"
  dependency-type: indirect
  update-type: version-update:semver-minor
...

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

yarn.lock

@@ -1110,12 +1110,12 @@ __metadata:
   linkType: hard
 
 "@metamask/rpc-errors@npm:^6.0.0, @metamask/rpc-errors@npm:^6.1.0":
-  version: 6.1.0
-  resolution: "@metamask/rpc-errors@npm:6.1.0"
+  version: 6.2.1
+  resolution: "@metamask/rpc-errors@npm:6.2.1"
   dependencies:
-    "@metamask/utils": ^8.1.0
+    "@metamask/utils": ^8.3.0
     fast-safe-stringify: ^2.0.6
-  checksum: 9f4821d804e2fcaa8987b0958d02c6d829b7c7db49740c811cb593f381d0c4b00dabb7f1802907f1b2f6126f7c0d83ec34219183d29650f5d24df014ac72906a
+  checksum: a9223c3cb9ab05734ea0dda990597f90a7cdb143efa0c026b1a970f2094fe5fa3c341ed39b1e7623be13a96b98fb2c697ef51a2e2b87d8f048114841d35ee0a9
   languageName: node
   linkType: hard