Decentralization of configuration parameters phase 1

[turmelclem]

Content

Introduce a new crate called mithril-protocol-config to retrieve information about the Mithril Network (like epoch settings and aggregator features).

This crate contains a new trait, MithrilNetworkConfigurationProvider, and a first implementation calling Aggregator REST API. (in the future, for the purpose of decentralization, a new implementation will be created reading the Cardanao chain).

Crate mithril-signer use this new trait instead of using its internal AggregatorClient.

Pre-submit checklist

• Branch
  • Tests are provided (if possible)
  • Crates versions are updated (if relevant)
  • CHANGELOG file is updated (if relevant)
  • Commit sequence broadly makes sense
  • Key commits have useful messages
• PR
  • All check jobs of the CI have succeeded
  • Self-reviewed the diff
  • Useful pull request description
  • Reviewer requested
• Documentation
  • Update README file (if relevant)
  • Update documentation website (if relevant)
  • Add dev blog post (if relevant)
  • Add ADR blog post or Dev ADR entry (if relevant)
  • No new TODOs introduced

Issue(s)

Relates to #2692 (mithril protocol config and signer parts)

[github-actions]

Test Results

    4 files  ± 0    168 suites  +4   24m 19s ⏱️ +31s
2 227 tests +23  2 227 ✅ +23  0 💤 ±0  0 ❌ ±0 
6 879 runs  +92  6 879 ✅ +92  0 💤 ±0  0 ❌ ±0 

Results for commit 0fb35d9. ± Comparison against base commit b7be57f.

This pull request removes 1 and adds 24 tests. Note that renamed tests count towards both.

mithril-signer ‑ runtime::runner::tests::test_inform_epoch_setting_pass_allowed_discriminant_to_epoch_service

mithril-protocol-config ‑ aggregator_client::tests::aggregator_features::test_aggregator_features_ko_500
mithril-protocol-config ‑ aggregator_client::tests::aggregator_features::test_aggregator_features_ko_json_serialization
mithril-protocol-config ‑ aggregator_client::tests::aggregator_features::test_aggregator_features_ok_200
mithril-protocol-config ‑ aggregator_client::tests::aggregator_features::test_aggregator_features_timeout
mithril-protocol-config ‑ aggregator_client::tests::epoch_settings::test_epoch_settings_ko_500
mithril-protocol-config ‑ aggregator_client::tests::epoch_settings::test_epoch_settings_ok_200
mithril-protocol-config ‑ aggregator_client::tests::epoch_settings::test_epoch_settings_timeout
mithril-protocol-config ‑ aggregator_client::tests::test_4xx_errors_are_handled_as_remote_server_logical
mithril-protocol-config ‑ aggregator_client::tests::test_5xx_errors_are_handled_as_remote_server_technical
mithril-protocol-config ‑ aggregator_client::tests::test_non_4xx_or_5xx_errors_are_handled_as_unhandled_status_code_and_contains_response_text
…

♻️ This comment has been updated with latest results.

[github-advanced-security]

clippy found more than 20 potential problems in the proposed changes. Check the Files changed tab for more details.