chore: bump pallas to 0.35 for van Rossem compatibility

[scarmuega]

Summary

• Bumps pallas from 0.33 to 0.35 so Oura advertises NodeToClient handshake versions v17–v23, which cardano-node 10.7 (the van Rossem hard fork target) negotiates.
• No source changes needed: Oura connects through NodeClient::connect / PeerClient::connect, which use n2c::VersionTable::v10_and_above / n2n::VersionTable::v7_and_above. Pallas 0.35 widens those tables; the new versions flow through automatically.
• Van Rossem is an intra-era hard fork inside Conway (PV11). Block CBOR shape, the Era enum in pallas-traverse, and MultiEraBlock are unchanged, so chain-sync / block-fetch decoding paths need no updates.

Why not pallas 1.0.0-alpha.x?

The 1.0.0-alpha line is a much larger refactor (introduces pallas-network2, splits out a p2p crate, reworks Conway phase-one validation). For a "compatibility" change, staying on the 0.x line keeps the diff to a one-line bump.

Test plan

• cargo check --all-features passes (only pre-existing StreamStrategy dead-code warning).
• cargo build --no-default-features passes.
• cargo build --no-default-features --features "aws,sql,gcp,rabbitmq,zeromq,u5c,hydra,wasm" passes.
• cargo test with the same feature set: 18/18 unit + 16/16 hydra integration tests pass.
• Manual smoke test against a cardano-node 10.7 / van Rossem testnet socket (chain-sync + block-fetch).
• Re-run on CI matrix; confirm the mithril feature builds (couldn't verify locally — pre-existing gmp-mpfr-sys x86_64/arm64 archive issue on the dev machine, unrelated to this bump; reproduces on main before the change).

🤖 Generated with Claude Code

Summary by CodeRabbit

• Chores
  • Updated internal dependency to a newer version for improved compatibility and stability.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: 195bf115-4d2a-4606-9185-b484d59c04bc

📥 Commits

Reviewing files that changed from the base of the PR and between d5c6d6a and 0f14c99.

⛔ Files ignored due to path filters (1)

• Cargo.lock is excluded by !**/*.lock

📒 Files selected for processing (1)

• Cargo.toml

---

📝 Walkthrough

Walkthrough

A single dependency version bump: the pallas crate is updated from version 0.33 to 0.35 while retaining the hardano feature flag.

Changes

Dependency Update

Layer / File(s)	Summary
Cargo.toml Cargo.toml	pallas dependency version bumped from 0.33 to 0.35; hardano feature flag retained.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~2 minutes

Poem

🐰 A nibble here, a version there,
Pallas grows with utmost care,
From thirty-three to thirty-five it springs,
The hardano magic still takes wing! ✨

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately summarizes the main change: bumping the pallas dependency from 0.33 to 0.35 with specific context about van Rossem compatibility.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

_{✏️ Tip: You can configure your own custom pre-merge checks in the settings.}

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch chore/pallas-0.35-van-rossem

---

Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out.

❤️ Share

• X
• Mastodon
• Reddit
• LinkedIn

_{Comment @coderabbitai help to get the list of available commands and usage tips.}