fix: upgrade helius-laserstream to fix gRPC connection leaks

[thlorenz]

Summary

Upgrade helius-laserstream SDK to v0.2.8+conn-fix to fix leaking gRPC connections.
NOTE: they use the typescript version for tagging.

The new version applies the connection management fix from
helius-labs/laserstream-sdk@main...magicblock-labs:laserstream-sdk:v0.2.8+conn-fix
to prevent gRPC connection leaks to Helius.

Details

• Updated dependency from helius-laserstream = "0.1.5" to git dependency pointing to the custom branch containing the connection fix
• This ensures proper cleanup of gRPC connections and prevents resource leaks in the syncer

Summary by CodeRabbit

• Chores
  • Updated internal dependencies to enhance reliability and stability.

[coderabbitai]

Walkthrough

The helius-laserstream dependency is modified to source from a git repository on the v0.2.8+conn-fix branch instead of the published crates.io version 0.1.5. This affects dependency resolution and build sourcing.

Changes

Cohort / File(s)	Summary
Dependency Source Update Cargo.toml	Modified helius-laserstream to use git source at https://github.com/magicblock-labs/laserstream-sdk on branch v0.2.8+conn-fix instead of crates.io version 0.1.5.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~2 minutes

🚥 Pre-merge checks | ✅ 3

✅ Passed checks (3 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly and specifically describes the main change: upgrading helius-laserstream to fix gRPC connection leaks, which directly matches the changeset's objective and the dependency update.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch thlorenz/fix-connection-leak

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[coderabbitai]

Actionable comments posted: 1

🤖 Prompt for all review comments with AI agents

Verify each finding against the current code and only fix it if needed.

Inline comments:
In `@Cargo.toml`:
- Line 10: Replace the floating git branch pin for the dependency
helius-laserstream in Cargo.toml with an immutable commit SHA: locate the
dependency entry that currently uses branch = "v0.2.8+conn-fix" and change it to
use rev = "<commit-sha>" (the exact commit SHA from that branch) so builds are
reproducible; keep the git URL and remove the branch key once rev is set.

🪄 Autofix (Beta)

Fix all unresolved CodeRabbit comments on this PR:

• Push a commit to this branch (recommended)
• Create a new PR with the fixes

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ℹ️ Review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: ASSERTIVE

Plan: Pro

Run ID: 39f65c80-e88e-428f-b79b-571d82d8c0fe

📥 Commits

Reviewing files that changed from the base of the PR and between c853232 and 9d5d8b7.

📒 Files selected for processing (1)

• Cargo.toml

[bmuddha]

LGTM, we can merge it, I'll see whether we can upgrade the router with this version