fix compile error

extensions/git/src/repository.ts

@@ -699,7 +699,7 @@ export class Repository implements Disposable {
 		});
 	}
 
-	lstree(ref: string, filePath: string): Promise<{ mode: number, type: string, object: string, size: number }> {
+	lstree(ref: string, filePath: string): Promise<{ mode: number, object: string, size: number }> {
 		return this.run(Operation.LSTree, () => this.repository.lstree(ref, filePath));
 	}