fix(files-external): set password as sensitive

Signed-off-by: Maxence Lange <maxence@artificial-owl.com>

apps/files_external/lib/Lib/Backend/OwnCloud.php

@@ -25,6 +25,9 @@ class OwnCloud extends Backend {
 				(new DefinitionParameter('secure', $l->t('Secure https://')))
 					->setType(DefinitionParameter::VALUE_BOOLEAN)
 					->setDefaultValue(true),
+				(new DefinitionParameter('password', $l->t('Password')))
+					->setFlag(DefinitionParameter::FLAG_OPTIONAL)
+					->setType(DefinitionParameter::VALUE_PASSWORD),
 			])
 			->addAuthScheme(AuthMechanism::SCHEME_PASSWORD)
 			->setLegacyAuthMechanism($legacyAuth)