Mark UTC timezone to the last updated timestamp

[vansonlin]

Otherwise the timestamp is just confusing

Description

TESTING STAGE

Tested in my webserver

Types of changes

• [ ] Bug fix (non-breaking change which fixes an issue)
• [x] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• [x] I have read CONTRIBUTING.md
• [x] I fully understand Github Flow.
• [x] My code adheres to the code style of this project.
• [x] I have updated the documentation in /docs if I have changed the config, arguments, logic in how the bot works, or anything that understandably needs a documentation change.
• [x] I have updated the config file accordingly if my change requires a new configuration setting or changes an existing one.
• [x] I have tested the bot with no issues for 24 continuous hours. If issues were experienced, they have been patched and tested again.

[Evanito]

Is this purely a visual change on the webpage? If so, can I see a screenshot?

[rnevet]

As far as I remember, I don't think it's always UTC, it's using the timezone where the bot is running: https://github.com/BitBotFactory/MikaLendingBot/blob/b59ab8709220b3be1481ca8949a80f944b05018e/modules/Logger.py#L102