fix: bump genlayer-js to 0.21.3 for gen_call testnet compatibility

[MuncleUscles]

Summary

• Bumps genlayer-js to 0.21.3 which fixes readContract / genlayer call on testnet
• Root cause: testnet node returns gen_call results as an object {data, status, eqOutputs, stdout, stderr, logs} while Studio returns a bare hex string. genlayer-js 0.21.3 handles both formats.
• Also noted this as incompatibility 5 cli implement init command #7 in genlayer-studio/docs/plans/studio-testnet-format-alignment.md

Test plan

• All 439 CLI tests pass
• Verified readContract('get_balance') works against testnet-bradbury contract 0x73ee6af5F210d5AC8902B18F53CE23b53eDFC65F

Summary by CodeRabbit

• Chores
  • Updated genlayer-js dependency to version 0.21.3 for compatibility improvements.

[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: 8975f47c-9183-45d8-8633-2ed998995292

📥 Commits

Reviewing files that changed from the base of the PR and between b2606e6 and 54c675b.

⛔ Files ignored due to path filters (1)

• package-lock.json is excluded by !**/package-lock.json

📒 Files selected for processing (1)

• package.json

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📝 Walkthrough

Walkthrough

The pull request updates the genlayer-js dependency from version ^0.21.2 to ^0.21.3 in package.json. This is a patch version bump of the dependency with no other functional changes.

Changes

Cohort / File(s)	Summary
Dependency Version Bump package.json	Updated genlayer-js from ^0.21.2 to ^0.21.3 (patch version update).

Estimated Code Review Effort

🎯 1 (Trivial) | ⏱️ ~2 minutes

Possibly Related PRs

• fix: bump genlayer-js for staking wizard min stake #282: Sequential version bump of genlayer-js dependency with related upstream changes.
• fix: show contract address on testnet deploys #281: Prior version bump of genlayer-js dependency in the same project.

Poem

🐰 A nibble here, a version there,
Dependencies bump with care,
From 0.21.2 to 0.21.3,
Small changes keep the codebase spry!

🚥 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 accurately describes the main change: bumping genlayer-js dependency to version 0.21.3 and specifies the purpose (testnet compatibility), which directly aligns with the changeset.
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 fix/bump-genlayer-js-0.21.3

📝 Coding Plan

• Generate coding plan for human review comments

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