build(rust): Update Rust toolchain to 1.97

[github-actions]

Update Rust toolchain to 1.97 (1.97.0).

Changes:

• Update rust-toolchain.toml channel to 1.97

Release Notes: https://github.com/rust-lang/rust/releases/tag/1.97.0

---

🤖 This PR was created automatically by the Rust toolchain update bot.

[sentry]

Bug: Updating the Rust toolchain may introduce new Clippy lints, potentially causing the CI build to fail if warnings are treated as errors.
_{Severity: LOW}

Suggested Fix

Run Clippy locally using the toolchain version specified in rust-toolchain.toml. Address any new lints that are reported to ensure the CI pipeline will pass.

Prompt for AI Agent

Review the code at the location below. A potential bug has been identified by an AI
agent. Verify if this is a real issue. If it is, propose a fix; if not, explain why it's
not valid.

Location: rust-toolchain.toml#L2

Potential issue: The modification to `rust-toolchain.toml` updates the Rust toolchain
version. This can introduce new Clippy lints or change the behavior of existing ones. If
the Continuous Integration (CI) pipeline is configured to treat Clippy warnings as
errors (e.g., using the `-D warnings` flag), this update could cause the build to fail,
preventing this and future pull requests from being merged.

_{Did we get this right? 👍 / 👎 to inform future reviews.}