Iso time

[joesmolsky]

Change time format to ISO format. This makes the TimeStuff class obsolete. Times can now be set with datetime.utcnow().isoformat().

Version also changes from 1.1.0 to 1.1.1

[KaraMelih]

Looks quite good, thanks for taking care of it!
I just want to check it with pycharm to see if the TimeStuff is not used in anywhere else.
This indeed simplifies things

[KaraMelih]

Your commits from yesterday started to fail the tests;
https://github.com/SNEWS2/SNEWS_Publishing_Tools/actions
could you have a look at the cause

[joesmolsky]

I have updated the format checker to include warnings with the logs.

Also did some fixes to the time checking logic and fixed some typos in the test function times.

[KaraMelih]

Thanks Joe it looks better!
I can try to test it tomorrow, latest next Monday and merge it.
Please let me know if you need me to do it faster

[KaraMelih]

I made some comments. I noticed that there are a few minor things need to be changed

[KaraMelih]

You can also debug these via snews_pt run-scenarios it shows already these error messages without having to interact with cs