Bump cardano-api to 11.6, cardano-rpc to 11.2, cardano-cli to 11.2.2

[carbolymer]

Description

Integrates the new cardano-api 11.6.0.0, cardano-rpc 11.2.0.0 and cardano-cli 11.2.2.0 releases.

Bump dependencies and CHaP index in cardano-node:

• cardano-api ^>= 11.5 to ^>= 11.6
• cardano-cli ^>= 11.2.1 to ^>= 11.2.2
• cardano-rpc ^>= 11.1 to ^>= 11.2
• CHaP index-state bumped from 2026-08-17T11:39:16Z to 2026-08-25T16:32:51Z
• CHaP flake input updated to match the new index-state pin

Migration fixes

• cardano-node/src/Cardano/Node/Run.hs: the cardano-rpc 11.2 mkNodeKernelAccess now takes the Shelley genesis file path as its third argument instead of the run parameters value.
  handleSimpleNode was updated to match.
  It now passes a shelleyGenesisFile derived from npcShelleyGenesisFile on the node's NodeProtocolConfigurationCardano, instead of runP.

Changelogs

• https://github.com/IntersectMBO/cardano-api/releases/tag/cardano-api-11.6.0.0
• https://github.com/IntersectMBO/cardano-api/releases/tag/cardano-rpc-11.2.0.0
• https://github.com/IntersectMBO/cardano-cli/releases/tag/cardano-cli-11.2.2.0

Changelog fragments for cardano-testnet, cardano-submit-api and cardano-node-chairman are already included in this PR.
Their pr: fields are being updated from the placeholder 0 to 6662 and will be pushed shortly.

Checklist

• Commit sequence broadly makes sense and commits have useful messages
• New tests are added if needed and existing tests are updated. These may include:
  • golden tests
  • property tests
  • roundtrip tests
  • integration tests
    See Running tests for more details
• Any changes are noted in the CHANGELOG.md for affected package
  • cardano-node-chairman, cardano-submit-api and cardano-testnet instead need a
    changelog fragment in <package>/.changes/, because their CHANGELOG.md is generated
    from fragments at release time. Copy _TEMPLATE.yml from that directory, or run
    nix run github:input-output-hk/cardano-dev#herald -- new
• The version bounds in .cabal files are updated
• CI passes. See note on CI. The following CI checks are required:
  • Code is linted with hlint. See .github/workflows/check-hlint.yml to get the hlint version
  • Code is formatted with stylish-haskell. See .github/workflows/stylish-haskell.yml to get the stylish-haskell version
  • Code builds on Linux, MacOS and Windows for ghc-9.6 and ghc-9.12
• Self-reviewed the diff

Note on CI

If your PR is from a fork, the necessary CI jobs won't trigger automatically for security reasons.
You will need to get someone with write privileges. Please contact IOG node developers to do this
for you.