Add config jsonschema to release artifacts

[jonas-switala]

Describe what you are trying to accomplish and why in non technical terms
I want to be able to have the config jsonschema definition available via a public URL so that I can validate config files without access to a running frigate deployment.

Describe the solution you'd like
Dump the config file jsonschema definition as part of the release pipeline and add it to release artifacts.

Describe alternatives you've considered

• Exporting the jsonschema definition manually for each release
• Starting a local frigate container every time I want to edit the configuration
• Adding the schema definition to this repo
  All of the above seem unnecessary complex or require duplicated work

Additional context
Currently the setup requires a running deployment of frigate, which is especially inconvenient if you are trying to debug a broken config file which results in frigate not starting.