Bump tree-sitter from 0.20.8 to 0.20.9 in /ql

Bumps [tree-sitter](https://github.com/tree-sitter/tree-sitter) from 0.20.8 to 0.20.9.
- [Release notes](https://github.com/tree-sitter/tree-sitter/releases)
- [Commits](https://github.com/tree-sitter/tree-sitter/commits)

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

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

ql/Cargo.lock

@@ -505,9 +505,9 @@ dependencies = [
 
 [[package]]
 name = "tree-sitter"
-version = "0.20.8"
+version = "0.20.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "268bf3e3ca0c09e5d21b59c2638e12cb6dcf7ea2681250a696a2d0936cb57ba0"
+checksum = "d4423c784fe11398ca91e505cdc71356b07b1a924fc8735cfab5333afe3e18bc"
 dependencies = [
  "cc",
  "regex",