add tech support role to allowed roles when sending an invite (#1835)

### Fixes #1834 

## Description

This fixes a bug where a tech support user cannot add/invite another
user

Looks like the tech support role was left off the list of allowed roles
to send an invite.

## Testing

Verify that the repro steps in the bug report show no error message

src/Api/Model/Shared/Command/UserCommands.php

@@ -566,7 +566,7 @@ public static function sendInvite(
         // Verify authority of $invitingUser to invite someone of this role
         $userIsAuthorized = false;
         $invitingUserRole = $project->users[$invitingUserId]->role;
-        $authorizedRoles = [ProjectRoles::MANAGER];
+        $authorizedRoles = [ProjectRoles::MANAGER, ProjectRoles::TECH_SUPPORT];
         if ($roleKey == ProjectRoles::MANAGER) {
             $userIsAuthorized = in_array($invitingUserRole, $authorizedRoles);
         }