feat(AC check): Add endpoint to get most recent event of a body

[LeonVreling]

Needed for functioning of AEGEE/frontend#2036

[WikiRik]

Before I forget; we do not know right now which events count for the Antenna Criteria (and even that changes depending on if you want to upgrade to an antenna or want to remain an antenna)

Upgrade to an antenna; "Have organised a European event, AEGEE event or AEGEE-Europe event according to
the Event Rules in the past two years."
Remaining an antenna; "Have organised a European event or Summer University at least once every two years."

[WikiRik]

In general I'm okay with merging this (after a positive review), but it cannot be used as AC check yet. The new proposal from EQAC et al also excludes some events mentioned on MyAEGEE to count as fulfilling AC. Maybe we should add an additional field and check for the most recent one of that instead

[LeonVreling]

Yes agreed, this will most likely need to change if the EQAC proposal is accepted (which would also be good for the implementation, since then the criteria are merged that you mentioned above)

[WikiRik]

If I read the draft correctly, the new proposal still does not mention that all MyAEGEE events (that fall under this microservice) are eligible for the AC. So we still need some additional logic here I think. Easiest is to add a checkbox mentioning that it counts as European Event. But do note that as definitions change, we will have more logic there so that's going to be fun

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 99.47%. Comparing base (130897f) to head (fdc95f7).
Report is 2 commits behind head on stable.

Additional details and impacted files

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  Coverage   99.47%   99.47%           
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  Files          18       18           
  Lines         757      764    +7     
  Branches      177      178    +1     
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+ Hits          753      760    +7     
  Misses          4        4           

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[LeonVreling]

@WikiRik I believe all events from this microservice are now eligible, could you please check

[serge1peshcoff]

🎉 This PR is included in version 1.5.0 🎉

The release is available on GitHub release

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