chore(deps): bump pctx_code_mode from 0.3.0 to 0.4.0

Bumps [pctx_code_mode](https://github.com/portofcontext/pctx) from 0.3.0 to 0.4.0.
- [Release notes](https://github.com/portofcontext/pctx/releases)
- [Changelog](https://github.com/portofcontext/pctx/blob/main/CHANGELOG.md)
- [Commits](portofcontext/pctx@pctx_code_mode-v0.3.0...pctx_code_mode-v0.4.0)

---
updated-dependencies:
- dependency-name: pctx_code_mode
  dependency-version: 0.4.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

Cargo.lock

@@ -180,7 +180,7 @@ tree-sitter-rust = { workspace = true }
 tree-sitter-swift = { workspace = true }
 tree-sitter-typescript = { workspace = true }
 which = { workspace = true }
-pctx_code_mode = { version = "^0.3.0", optional = true }
+pctx_code_mode = { version = "^0.4.0", optional = true }
 pulldown-cmark = "0.13.0"
 llama-cpp-2 = { version = "0.1.143", features = ["sampler", "mtmd"], optional = true }
 encoding_rs = "0.8.35"