debugger/tasks: Remove TaskType enum (#29208)

Closes #ISSUE

Release Notes:

- N/A

---------

Co-authored-by: Cole Miller <m@cole-miller.net>
Co-authored-by: Anthony Eid <hello@anthonyeid.me>
Co-authored-by: Conrad Irwin <conrad.irwin@gmail.com>
Co-authored-by: Anthony <anthony@zed.dev>
Co-authored-by: Conrad <conrad@zed.dev>

crates/language/src/task_context.rs

@@ -47,4 +47,7 @@ pub trait ContextProvider: Send + Sync {
     fn lsp_task_source(&self) -> Option<LanguageServerName> {
         None
     }
+
+    /// Default debug adapter for a given language.
+    fn debug_adapter(&self) -> Option<String>;
 }