fix: include importer_kind in dependency debounce key to prevent cross-kind collisions (#8567)

Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

backend/windmill-dep-map/src/trigger_dependents.rs

@@ -61,7 +61,7 @@ pub async fn trigger_dependents_to_recompute_dependencies(
         );
 
         let mut debouncing_settings = DebouncingSettings {
-            debounce_key: Some(format!("{w_id}:{importer_path}:dependency")),
+            debounce_key: Some(format!("{w_id}:{importer_path}:{importer_kind}:dependency")),
             debounce_delay_s: Some(5),
             ..Default::default()
         };