Fix warnings when using pixi 0.40.x

[Wumpf]

What

I'm using a newer pixi version because it promises some performance improvements on Windows (where the environment switch is quite costly). Prior to this PR this resulted in the following warnings:

 WARN Encountered ambiguous version specifier `1.5.1`, could be `1.5.1.*` but assuming you meant `==1.5.1`. In the future this will result in an error.
 WARN Encountered ambiguous version specifier `18.0.0`, could be `18.0.0.*` but assuming you meant `==18.0.0`. In the future this will result in an error.
 WARN Encountered ambiguous version specifier `19.37.32822`, could be `19.37.32822.*` but assuming you meant `==19.37.32822`. In the future this will result in an error.    
 WARN Encountered ambiguous version specifier `16.0.6`, could be `16.0.6.*` but assuming you meant `==16.0.6`. In the future this will result in an error.
 WARN Encountered ambiguous version specifier `1.11.1`, could be `1.11.1.*` but assuming you meant `==1.11.1`. In the future this will result in an error.
 WARN Encountered ambiguous version specifier `16.0.6`, could be `16.0.6.*` but assuming you meant `==16.0.6`. In the future this will result in an error.
 WARN Encountered ambiguous version specifier `3.27.6`, could be `3.27.6.*` but assuming you meant `==3.27.6`. In the future this will result in an error.
 WARN Encountered ambiguous version specifier `1.14.1`, could be `1.14.1.*` but assuming you meant `==1.14.1`. In the future this will result in an error.
 WARN Encountered ambiguous version specifier `1.11.1`, could be `1.11.1.*` but assuming you meant `==1.11.1`. In the future this will result in an error.
 WARN Encountered ambiguous version specifier `18.0.0`, could be `18.0.0.*` but assuming you meant `==18.0.0`. In the future this will result in an error.
 WARN Encountered ambiguous version specifier `0.3.5`, could be `0.3.5.*` but assuming you meant `==0.3.5`. In the future this will result in an error.

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Result	Commit	Link
✅	7437a17	https://landing-eumwsj397-rerun.vercel.app/docs

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[github-actions]

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Result	Commit	Link	Manifest
✅	7437a17	https://rerun.io/viewer/pr/8791	+nightly +main

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