Use local timezone for platform logs

[christian-brindley]

The platform logs include timestamps in UTC timezone - for example

"timestamp": "2024-09-16T16:26:06.335625412Z"

When specifying a date range for the frodo logs command, you can search via UTC as per the logs - e.g.

frodo logs fetch -b 2024-09-16T06:00:00Z -e 2024-09-16T06:10:00Z ...

For customers who wish to use local timezone for the search, it is possible to offset the search timestamps accordingly - e.g. 2024-09-16T06:00:00-05:00 - but it would be helpful to have the following features:

• An option to automatically use the local timezone (maybe by leaving off the Z), or have a timezone option

• An option to transform the log timestamps in the results to the local timezone - e.g. transform "timestamp": "2024-09-16T16:26:06.335625412Z" to "timestamp": "2024-09-16T11:26:06.335625412-05:00"