#3 chore(deps): refresh compatible crate versions

Summary

Refresh compatible Rust dependencies: serde 1.0.229, serde_json 1.0.151, thiserror 2.0.20, regex 1.13.1, extism-pdk 1.4.1, rstest 0.26.1, plus a Cargo.lock update.

Why

Keep crawler/hoster plugins on current patch/minor crates without crossing crypto or Extism major lines.

Testing

• cargo test --lib (host target where .cargo/config.toml pins wasm32-wasip1)
• cargo clippy --lib --bins -- -D warnings

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Summary by cubic

Refreshes compatible Rust dependencies so crawler/hoster plugins stay on current patch and minor releases without crossing crypto or Extism major lines.

• Bumps serde, serde_json, thiserror, regex, extism-pdk, and rstest in Cargo.toml.
• Refreshes Cargo.lock with the latest transitive updates.

Summary by CodeRabbit

• Chores
  • Updated internal project components to newer maintenance releases.
  • No user-facing functionality or behavior changes are included.