Add py-zarr to jedi-python-env

[eap]

This adds py-zarr to jedi-python-env pinned at 3.

Concretizer output changes:

    -  py-zarr@3.1.2
         - py-numcodecs@0.16.5
             - py-crc32c@2.7.1
             - py-py-cpuinfo@9.0.0    (build)

Fixes: #1888

[climbfuji]

How many dependencies does that add? Do we know?

[climbfuji]

How many dependencies does that add? Do we know?

Just saw the list of additional files in the PR description - looks good.

[eap]

Alright I did a fresh test build with oneapi 2026.1 and gcc 13, both are working and the new dependencies aren't any different. Similarly the CI is passing. I'm going to merge this.

[climbfuji]

I wanted to merge #2165 first, but since we are still debating the exact syntax, let's do this, then #2170 without retesting, then #2165 after finalizing the syntax, then #2169.