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/proto/src/proto.rs

@@ -298,8 +298,8 @@ messages!(
     (GitInit, Background),
     (GetDebugAdapterBinary, Background),
     (DebugAdapterBinary, Background),
-    (RunDebugLocator, Background),
-    (DebugTaskDefinition, Background),
+    (RunDebugLocators, Background),
+    (DebugRequest, Background),
 );
 
 request_messages!(
@@ -456,7 +456,7 @@ request_messages!(
     (GitInit, Ack),
     (ToggleBreakpoint, Ack),
     (GetDebugAdapterBinary, DebugAdapterBinary),
-    (RunDebugLocator, DebugTaskDefinition),
+    (RunDebugLocators, DebugRequest),
 );
 
 entity_messages!(
@@ -576,7 +576,7 @@ entity_messages!(
     GitInit,
     BreakpointsForFile,
     ToggleBreakpoint,
-    RunDebugLocator,
+    RunDebugLocators,
     GetDebugAdapterBinary,
 );