fix!: update multiformats to v11.x.x

[achingbrain]

The CID class in multiformats v11 has breaking changes so update all deps to use the new version.

[github-actions[bot]]

:tada: This PR is included in version 6.0.0 :tada:

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

Your semantic-release bot :package::rocket: