[DDW-1220] Update cardano-node to 8.1.1 (via cardano-wallet)

This PR updates cardano-node to 8.1.1

~⚠️ DO NOT MERGE: blocked until:~

[x] PR assigned to the PR author(s)
[x] input-output-hk/daedalus-dev and input-output-hk/daedalus-qa assigned as PR reviewers
[ ] If there are UI changes, Alexander Rukin assigned as an additional reviewer
[x] PR has appropriate labels (release-vNext, feature/bug/chore, WIP)
[x] PR link is added to a Jira ticket, ticket moved to In Review
[x] PR is updated to the most recent version of the target branch (and there are no conflicts)
[x] PR has a good description that summarizes all changes
[x] PR contains screenshots (in case of UI changes)
[x] CHANGELOG entry has been added to the top of the appropriate section (Features, Fixes, Chores) and is linked to the correct PR on GitHub
[x] There are no missing translations (running yarn manage:translations produces no changes)
[x] Text changes are proofread and approved (Jane Wild / Amy Reeve)
[x] Japanese text changes are proofread and approved (Junko Oda)
[ ] Storybook works and no stories are broken (yarn storybook)
[x] In case of dependency changes yarn.lock file is updated

[x] Important parts of the code are properly commented and documented
[x] Code is properly typed with typescript types
[x] React components are split-up enough to avoid unnecessary re-renderings
[x] Any code that only works in main process is neatly separated from components