Improve TypeScript task detection (#31711)

Parses project's package.json to better detect Jasmine, Jest, Vitest and
Mocha and `test`, `build` scripts presence.
Also tries to detect `pnpm` and `npx` as test runners, falls back to
`npm`.


https://github.com/user-attachments/assets/112d3d8b-8daa-4ba5-8cb5-2f483036bd98

Release Notes:

- Improved TypeScript task detection

crates/languages/Cargo.toml

@@ -38,6 +38,7 @@ anyhow.workspace = true
 async-compression.workspace = true
 async-tar.workspace = true
 async-trait.workspace = true
+chrono.workspace = true
 collections.workspace = true
 dap.workspace = true
 futures.workspace = true
@@ -87,6 +88,7 @@ tree-sitter-rust = { workspace = true, optional = true }
 tree-sitter-typescript = { workspace = true, optional = true }
 tree-sitter-yaml = { workspace = true, optional = true }
 util.workspace = true
+which.workspace = true
 workspace-hack.workspace = true
 
 [dev-dependencies]