backend-app-api: switch plugin log label pluginId->plugin

Signed-off-by: Patrik Oldsberg <poldsberg@gmail.com>

.changeset/polite-books-suffer.md

@@ -0,0 +1,5 @@
+---
+'@backstage/backend-app-api': patch
+---
+
+Tweaked the plugin logger to use `plugin` as the label for the plugin ID, rather than `pluginId`.

packages/backend-app-api/src/services/implementations/loggerService.ts

@@ -28,7 +28,7 @@ export const loggerFactory = createServiceFactory({
   },
   async factory({ rootLogger }) {
     return async ({ plugin }) => {
-      return rootLogger.child({ pluginId: plugin.getId() });
+      return rootLogger.child({ plugin: plugin.getId() });
     };
   },
 });