Changes to List network coverage locations

added the new tailscale_subnet_router enum value to the data/items/available_services/items/oneOf[subschema #1: Available service] response property for the response status 200

added the enum value tailscale_subnet_router to the property available_services/oneOf[subschema #1: Available service]/ of the query request parameter filters

added the enum value tailscale_subnet_router to the property available_services/oneOf[subschema #2]/contains of the query request parameter filters

the errors/items/code response's property type changed from integer to string, and format from int32 to no format for status 422

the errors/items/code response's property type changed from integer to string, and format from int32 to no format for status default

added the optional property errors/items/description to the response with the 422 status

added the optional property errors/items/description to the response with the default status

the errors/items/code response's property type changed from string to integer, and format from no format to int32 for status 422

the errors/items/code response's property type changed from string to integer, and format from no format to int32 for status default

the errors/items/code response's property type changed from integer to string, and format from int32 to no format for status 422

the errors/items/code response's property type changed from integer to string, and format from int32 to no format for status default

the errors/items/code response's property type changed from string to integer, and format from no format to int32 for status 422

the errors/items/code response's property type changed from string to integer, and format from no format to int32 for status default