Disable pwnedpasswords

<!-- # NOTE: Please update to the latest version of vaultwarden before reporting an issue! This saves you and us a lot of time and troubleshooting. See: * * # --> <!-- Please fill out the following template to make solving your problem easier and faster for us. This is only a guideline. If you think that parts are unnecessary for your issue, feel free to remove them. Remember to hide/redact personal or confidential information, such as passwords, IP addresses, and DNS names as appropriate. --> Subject of the issue <!-- Describe your issue here. --> During registration there is an option to "Check known data breaches for this password", which can be disabled by the user. If however this is enabled, and api.pwnedpasswords.com is unreachable, the registration fails silently. This will happen in corporate environments with a http proxy. Deployment environment • Vaultwarden version: v1.28.1 •…