Support Cardano node `9.0.0`

[jpraynaud]

Content

This PR includes the support for Cardano node 9.0.0.

[!WARNING] The version of the Cardano node must be updated in the GitHub environment variable CARDANO_NODE_VERSION to 9.0.0 for testing-preview prior merge of this PR.

Pre-submit checklist

• Branch
  • [x] Crates versions are updated (if relevant)
  • [x] CHANGELOG file is updated (if relevant)
  • [x] Commit sequence broadly makes sense
  • [x] Key commits have useful messages
• PR
  • [x] No clippy warnings in the CI
  • [x] Self-reviewed the diff
  • [x] Useful pull request description
  • [x] Reviewer requested

Issue(s)

Relates to #1787

[github-actions[bot]]

Test Results

    4 files  ±0     52 suites  ±0   8m 43s :stopwatch: -1s 1 141 tests ±0  1 141 :white_check_mark: ±0  0 :zzz: ±0  0 :x: ±0  1 307 runs  ±0  1 307 :white_check_mark: ±0  0 :zzz: ±0  0 :x: ±0 

Results for commit 08c90de7. ± Comparison against base commit c9fab14d.

:recycle: This comment has been updated with latest results.