Disallow additional properties for schema in values.schema.json

[fengelniederhammer]

... that particular object (the schema) doesn't have additionalProperties: false set. Maybe @fengelniederhammer you could add it in? Sorry for that!

Originally posted by @fhennig in #3814 (comment)

It is not immediately possible as there are errors when adding "additionalProperties": false to schema -> I'll leave it to a separate issue.

$ helm lint .
==> Linting .
[ERROR] values.yaml: - defaultOrganismConfig.schema: Additional property extraInputFields is not allowed
- defaultOrganisms.west-nile.schema: Additional property metadataAdd is not allowed
- defaultOrganisms.west-nile.schema: Additional property extraInputFields is not allowed
- defaultOrganisms.cchf.schema: Additional property metadataAdd is not allowed
- defaultOrganisms.cchf.schema: Additional property extraInputFields is not allowed
- defaultOrganisms.cchf.schema: Additional property nucleotideSequences is not allowed
- defaultOrganisms.dummy-organism-without-seqs.schema: Additional property nucleotideSequences is not allowed
- defaultOrganisms.ebola-sudan.schema: Additional property extraInputFields is not allowed

[ERROR] templates/: values don't meet the specifications of the schema(s) in the following chart(s):
loculus:
- defaultOrganismConfig.schema: Additional property extraInputFields is not allowed
- defaultOrganisms.dummy-organism-without-seqs.schema: Additional property nucleotideSequences is not allowed
- defaultOrganisms.ebola-sudan.schema: Additional property extraInputFields is not allowed
- defaultOrganisms.west-nile.schema: Additional property extraInputFields is not allowed
- defaultOrganisms.west-nile.schema: Additional property metadataAdd is not allowed
- defaultOrganisms.cchf.schema: Additional property metadataAdd is not allowed
- defaultOrganisms.cchf.schema: Additional property nucleotideSequences is not allowed
- defaultOrganisms.cchf.schema: Additional property extraInputFields is not allowed


Error: 1 chart(s) linted, 1 chart(s) failed

[fhennig]

Thanks for creating this issue, I'll put it on my list.