FIX - CI is failing with latest pixi lock version

[rcap107]

related to #1821

[rcap107]

It seems like the tests are failing because pyparsing is now version 3.3.1, while the lock file in main is still using 3.2.5. According to the release notes (https://github.com/pyparsing/pyparsing/blob/master/CHANGES):

In the pyparsing release 3.3.0, use of many of the pre-PEP8 methods (such as
ParserElement.parseString) will start to raise DeprecationWarnings. I plan to
completely drop the pre-PEP8 methods in pyparsing 4.0, though we won't see that release
until some time later in 2026. So there is plenty of time to convert existing parsers to
the new function names before the legacy functions are completely removed.

I'm pinning the pyparsing version for the time being

[rcap107]

I'm also updating the ci config to remove the deploy step as per https://circleci.com/docs/guides/orchestrate/migrate-from-deploy-to-run/

[glemaitre]

do you still want to keep this fix-pixi?

[rcap107]

whoops no, I forgot to remove this

[glemaitre]

Maybe put a small comment above to explain why

[glemaitre]

Looks good otherwise.

[glemaitre]

Thanks @rcap107 for the fix :)