chore: upgrade all dependencies to latest versions (#29)

* chore: upgrade all dependencies to latest versions

- Rust toolchain: 1.85 → 1.93
- Workspace deps: serde 1.0.228, serde_json 1.0.149, thiserror 2.0.18,
  anyhow 1.0.101, log 0.4.29, env_logger 0.11.9, async-trait 0.1.89,
  tokio 1.49.0, criterion 0.8.2, mockall 0.14.0, tempfile 3.25.0,
  tokio-test 0.4.5
- Per-crate deps: tree-sitter 0.26.5, tree-sitter-css 0.25.0,
  libc 0.2.182, windows 0.62.2, cbindgen 0.29.2
- pnpm: 10.6.3 → 10.29.3
- VitePress: 1.6.3 → 1.6.4
- turbo.json: migrate deprecated 'pipeline' key to 'tasks'

* fix: migrate benchmark to std::hint::black_box for criterion 0.8

criterion 0.8 deprecated criterion::black_box in favor of
std::hint::black_box which is now stable in Rust.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* chore: pin rust toolchain in ci to match local

---------

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: mohamedmansour

.github/workflows/pr.yml

@@ -17,6 +17,7 @@ jobs:
       - name: Setup Rust
         uses: dtolnay/rust-toolchain@stable
         with:
+          toolchain: 1.93
           components: clippy
 
       - name: Rust Cache
@@ -39,6 +40,8 @@ jobs:
 
       - name: Setup Rust
         uses: dtolnay/rust-toolchain@stable
+        with:
+          toolchain: 1.93
 
       - name: Rust Cache
         uses: Swatinem/rust-cache@v2