Fix(690) list index out of range in crew.py

[mangalprada]

Handle empty metrics list to avoid IndexError in crew.py mentioned in #690

• Added a condition to check if the metrics list is empty before accessing its elements.
• This prevents IndexError by setting self.usage_metrics to an empty dictionary if metrics is empty.

fix(logger): Resolve NameError by importing datetime module

• Added missing import for datetime module to resolve NameError.
• Ensured datetime is correctly used in the log method for timestamp generation.

[SimasJan]

Ended up here due to the same issue as in #690 .
Can this be closed so latest version has this fixed?
Currently implemented the fix manually 😅 Thanks

[SimasJan]

Found a duplicate of this issue #262
@joaomdmoura when would this fix be merged? If you are looking for extra volunteers to support on maintaining the package, would be happy to contribute :)