"etag" is referenced as a valid config property but is missing in the JSON schema

[nborko]

My serve.json file:

{
        "cleanUrls": false,
        "etag": false
}

serve 11.2.0 reports

ERROR: The configuration you provided is wrong:
should NOT have additional properties
{"additionalProperty":"etag"}

See also #519

[warren-bank]

shameless self-promotion alert:
this feature is fixed in my @warren-bank/serve fork of serve