fix(openapi): Fix returned types from external share

We always been returning an int for for accepted, but since it was
returned as a mixed from the DB, psalm never complained about the fact
this was typed as a bool in the API doc.

Signed-off-by: Carl Schwan <carl.schwan@nextcloud.com>

apps/files_sharing/lib/Controller/RemoteController.php

@@ -108,16 +108,17 @@ class RemoteController extends OCSController {
 	 * @return Files_SharingRemoteShare Enriched share info with data from the filecache
 	 */
 	private function extendShareInfo(ExternalShare $share): array {
+		$shareData = $share->jsonSerialize();
+
+		$shareData['parent'] = $shareData['parent'] !== '-1' ? $shareData['parent'] : null;
 		$userFolder = $this->rootFolder->getUserFolder($this->userId);
 
 		try {
 			$mountPointNode = $userFolder->get($share->getMountpoint());
 		} catch (\Exception) {
-			return $share->jsonSerialize();
+			return $shareData;
 		}
 
-		$shareData = $share->jsonSerialize();
-
 		$shareData['mimetype'] = $mountPointNode->getMimetype();
 		$shareData['mtime'] = $mountPointNode->getMTime();
 		$shareData['permissions'] = $mountPointNode->getPermissions();

apps/files_sharing/lib/ResponseDefinitions.php

@@ -89,7 +89,7 @@ namespace OCA\Files_Sharing;
  *     mtime: int|null,
  *     name: string,
  *     owner: string,
- *     parent: string,
+ *     parent: string|null,
  *     permissions: int|null,
  *     remote: string,
  *     remote_id: string,

apps/files_sharing/openapi.json

@@ -408,7 +408,8 @@
                 ],
                 "properties": {
                     "accepted": {
-                        "type": "boolean"
+                        "type": "integer",
+                        "format": "int64"
                     },
                     "file_id": {
                         "type": "integer",

openapi.json

@@ -2515,7 +2515,8 @@
                 ],
                 "properties": {
                     "accepted": {
-                        "type": "boolean"
+                        "type": "integer",
+                        "format": "int64"
                     },
                     "file_id": {
                         "type": "integer",