chore: update API reports

Signed-off-by: Sanchit2662 <sanchit2662@gmail.com>

.changeset/backend-process-listener-cleanup.md

@@ -0,0 +1,5 @@
+---
+'@backstage/backend-app-api': patch
+---
+
+Fixed memory leak by properly cleaning up process event listeners on backend shutdown.

packages/core-app-api/report.api.md

@@ -276,6 +276,7 @@ export class AppThemeSelector implements AppThemeApi {
   activeThemeId$(): Observable<string | undefined>;
   // (undocumented)
   static createWithStorage(themes: AppTheme[]): AppThemeSelector;
+  dispose(): void;
   // (undocumented)
   getActiveThemeId(): string | undefined;
   // (undocumented)