github actions: Update recommended Rust to 1.90.0

[mulkieran]

Related stratis-storage/project#818

Summary by CodeRabbit

• Chores
  • Updated the Rust toolchain used in continuous integration to version 1.90.0 for the spelling-check workflow, improving consistency and reliability of CI checks across environments.
  • Expect more predictable spelling validation and smoother CI runs during development.
  • No changes to product features or user experience.

[coderabbitai]

Walkthrough

Updates the GitHub Actions workflow to use Rust 1.90.0 instead of 1.89.0 in the spelling-checks job.

Changes

Cohort / File(s)	Summary of changes
GitHub Actions workflow .github/workflows/main.yml	Bump Rust toolchain for spelling-checks job from 1.89.0 to 1.90.0.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~2 minutes

Possibly related issues

• Increase recommended Rust toolchain to 1.90.0 project#818 — Aligns workflow Rust toolchain to 1.90.0 as described in the issue.

Poem

A bunny taps the CI drum, hop-hop, let’s go!
Rust’s new suit—one point nine-oh—on with the show.
Spelling bees buzz, workflows glide,
Carrots cached, green checks ride.
Thump-thump! Pipelines flow where tulips grow. 🥕✨

Pre-merge checks and finishing touches

✅ 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 is concise and accurately summarizes the primary change: updating the recommended Rust version used by GitHub Actions to 1.90.0. It matches the PR description and the single-file change in .github/workflows/main.yml, is specific about the component affected (GitHub Actions) and the version bump, and is readable for teammates scanning history. Therefore it clearly represents the main change without unnecessary detail.
Docstring Coverage	✅ Passed	No functions found in the changes. Docstring coverage check skipped.

✨ Finishing touches

🧪 Generate unit tests

• Create PR with unit tests
• Post copyable unit tests in a comment

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📜 Recent review details

Configuration used: CodeRabbit UI

Review profile: CHILL

Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between 0156f07 and dcf9ec0.

📒 Files selected for processing (1)

• .github/workflows/main.yml (1 hunks)

⏰ Context from checks skipped due to timeout of 90000ms. You can increase the timeout in your CodeRabbit configuration to a maximum of 15 minutes (900000ms). (2)

• GitHub Check: docs-checks
• GitHub Check: spelling-checks

🔇 Additional comments (1)

.github/workflows/main.yml (1)

57-57: Approve: Rust 1.90.0 bump — manifest live.
gh release 1.90.0 found and channel-rust-1.90.0.toml returned 200; CI should be OK.

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