extension: Update DAP extension API (#32448)

- DAP schemas will be stored in `debug_adapters_schemas` subdirectory in
extension work dir.
- Added Debug Config integration and such.

Release Notes:

- N/A

crates/dap_adapters/src/go.rs

@@ -95,7 +95,7 @@ impl DebugAdapter for GoDebugAdapter {
         Some(SharedString::new_static("Go").into())
     }
 
-    async fn dap_schema(&self) -> serde_json::Value {
+    fn dap_schema(&self) -> serde_json::Value {
         // Create common properties shared between launch and attach
         let common_properties = json!({
             "debugAdapter": {