extensions: Add "Debug Adapters" category to the extension store (#32845)

Closes #ISSUE

Release Notes:

- N/A

crates/collab/src/db/tables/extension_version.rs

@@ -27,6 +27,7 @@ pub struct Model {
     pub provides_slash_commands: bool,
     pub provides_indexed_docs_providers: bool,
     pub provides_snippets: bool,
+    pub provides_debug_adapters: bool,
 }
 
 impl Model {
@@ -68,6 +69,10 @@ impl Model {
             provides.insert(ExtensionProvides::Snippets);
         }
 
+        if self.provides_debug_adapters {
+            provides.insert(ExtensionProvides::DebugAdapters);
+        }
+
         provides
     }
 }