Release v8.0.8

• (@GermanBluefox) Added the option to answer ACME HTTP-01 challenges of the acme adapter
• (@GermanBluefox) Fixed the CORS headers missing on the OAuth2 endpoints. They answer without passing the request on, so retrieving a token from a browser on another origin failed with No Access-Control-Allow-Origin header is present. The CORS middleware is now registered in front of all routes
• (@GermanBluefox) src-admin/src/version.json is now generated from package.json at build time, so the version logged by the GUI is no longer stale