chore: update list of expected files

Signed-off-by: Benjamin Gaussorgues <[email protected]>

index.php

@@ -281,6 +281,7 @@ private function getExpectedElementsList(): array {
 			'COPYING-AGPL',
 			'occ',
 			'db_structure.xml',
+			'REUSE.toml',
 		];
 		return array_merge($expected, $this->getAppDirectories());
 	}

lib/Updater.php

@@ -243,6 +243,7 @@ private function getExpectedElementsList(): array {
 			'COPYING-AGPL',
 			'occ',
 			'db_structure.xml',
+			'REUSE.toml',
 		];
 		return array_merge($expected, $this->getAppDirectories());
 	}