Update list of tz database time zones

[richfab]

Context

As discussed in MobilityData/gbfs#697, the schemas don't match the spec currently for the allowed timezones.

Problem

The spec indicates: "Refer to https://en.wikipedia.org/wiki/List_of_tz_zones for a list of valid values" but the schemas don't contain all the values ​​from the list (e.g. 'America/Montreal' which used to be a canonical value but became a link to 'America/Toronto').

Solution

Replace the timezones in the schemas with the content of the TZ identifier column from this list.

This way, 'America/Montreal' will be considered valid by the validation tools (validator and schemas).

[leonardehrenfried]

Is there going to be a release of the java model that contains these changes?

[richfab]

Is there going to be a release of the java model that contains these changes?

Good point @leonardehrenfried. We'll keep you posted about this. Thanks!