Allow null credentials in export settings routes

Author: JLG-WOCFR-DEV

liens-morts-detector-jlg/includes/blc-google-sheets.php

@@ -542,7 +542,7 @@ function blc_register_google_sheets_rest_routes()
                             'required' => false,
                         ],
                         'client_secret'  => [
-                            'type'     => 'string',
+                            'type'     => ['string', 'null'],
                             'required' => false,
                         ],
                         'ranges'         => [

liens-morts-detector-jlg/includes/blc-s3-exports.php

@@ -643,15 +643,15 @@ function blc_register_s3_rest_routes()
                             'required' => false,
                         ],
                         'access_key_id'     => [
-                            'type'     => 'string',
+                            'type'     => ['string', 'null'],
                             'required' => false,
                         ],
                         'secret_access_key' => [
-                            'type'     => 'string',
+                            'type'     => ['string', 'null'],
                             'required' => false,
                         ],
                         'session_token'     => [
-                            'type'     => 'string',
+                            'type'     => ['string', 'null'],
                             'required' => false,
                         ],
                         'object_prefix'     => [