Poetry 2 compatibility

[dalito]

This only prepares for Poetry 2.0.x by removing old pins and changing the syntax to pass poetry check without warning for poetry 1.8.5.

With poetry 2.0.x there are warnings but no errors. So with the PR merged the project can be installed just fine with poetry 2.0.x.

The poetry 2.0 update of pyproject.toml will change more and should maybe done in another PR. Moreover, we may want to wait a little before breaking Poetry 1.8.x compatibility.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 60.75%. Comparing base (1b5e9f7) to head (857efbe).
Report is 5 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #363      +/-   ##
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- Coverage   63.43%   60.75%   -2.69%     
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  Files          63       62       -1     
  Lines        8982     8948      -34     
  Branches     2574     2569       -5     
==========================================
- Hits         5698     5436     -262     
+ Misses       2665     2661       -4     
- Partials      619      851     +232     

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[sneakers-the-rat]

I am not seeing the pass poetry check with a warning part, but if this patch allows CI to pass pending a full migration then looks good to me

[sneakers-the-rat]

It looks like there is a way to pin a specific version of poetry in pyproject.toml https://python-poetry.org/blog/announcing-poetry-2.0.0/

We may want to do a quick 1-line PR to upstream linkml to add this pin there rather than here so they don't go out of sync & fix later, but since this is likely to be a quick and easy change to both packages not necessary at all and this would be fine too

[dalito]

I believe the option to constrain poetry was added only in 2.0 - I could not find it in 1.8.5.

[dalito]

I now think it is better to directly go to Poetry 2.0 fully.

Yesterday, I saw a failure locally which made me think that this fix is required but testing with a fresh checkout of the current main-branch shows that poetry check, poetry lock and poetry install work with 1.8.5 and 2.0.1 with warnings only.

[sneakers-the-rat]

sounds good to me :) hopefully not too complicated, the 2.0 format is the standard anyway