build(deps): bump tree-sitter-rust from 0.20.4 to 0.21.2

Bumps [tree-sitter-rust](https://github.com/tree-sitter/tree-sitter-rust) from 0.20.4 to 0.21.2.
- [Commits](tree-sitter/tree-sitter-rust@v0.20.4...v0.21.2)

---
updated-dependencies:
- dependency-name: tree-sitter-rust
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

Cargo.lock

@@ -13,4 +13,4 @@ repository = "https://github.com/langston-barrett/treeedb"
 [dependencies]
 anyhow = "1.0"
 treeedb = { version = "0.1.0", path = "../treeedb", features = ["cli"] }
-tree-sitter-rust = { version = "0.20" }
+tree-sitter-rust = { version = "0.21" }

treeedb-rust/Cargo.toml

@@ -13,7 +13,7 @@ repository = "https://github.com/langston-barrett/treeedb"
 [dependencies]
 anyhow = "1"
 treeedbgen-souffle = { version = "0.1.0", path = "../treeedbgen-souffle", features = ["cli"] }
-tree-sitter-rust = { version = "0.20" }
+tree-sitter-rust = { version = "0.21" }
 
 [dev-dependencies]
 assert_cmd = "2.0"