fix: add maxSubmissions and isMaxSubmissionsReached to FormsForm psalm type

Author: lafricain79

lib/ResponseDefinitions.php

@@ -110,6 +110,7 @@
  *   state: int,
  *   lockedBy: ?string,
  *   lockedUntil: ?int,
+ *   maxSubmissions: ?int,
  * }
  *
  * @psalm-type FormsForm = array{
@@ -125,6 +126,7 @@
  *   fileId: ?int,
  *   filePath?: ?string,
  *   isAnonymous: bool,
+ *   isMaxSubmissionsReached: bool,
  *   lastUpdated: int,
  *   submitMultiple: bool,
  *   allowEditSubmissions: bool,
@@ -135,6 +137,7 @@
  *   state: 0|1|2,
  *   lockedBy: ?string,
  *   lockedUntil: ?int,
+ *   maxSubmissions: ?int,
  *   shares: list<FormsShare>,
  *   submissionCount?: int,
  *   submissionMessage: ?string,