fix: backwards-compat pin pandas<3

[ilan-gold]

Checklist

• Used a static YAML file for the patch if possible (instructions).
• Only wrote code directly into recipe/generate_patch_json.py if absolutely necessary.
• Ran pre-commit run -a (or cd recipe && pixi run pre-commit) and ensured all files pass the linting checks.
• Ran python recipe/show_diff.py (or cd recipe && pixi run diff) and posted the output as part of the PR.
• Modifications won't affect packages built in the future.

Is there any way to automate this from PRs like conda-forge/anndata-feedstock#63?

I'm rerunning now but I think the pixi run diff just crashed my computer and almost did it again before I killed the process. Maybe someone else can run?

[conda-forge-admin]

Hi! This is the friendly automated conda-forge-linting service.

I just wanted to let you know that I linted all conda-recipes in your PR (recipe/meta.yaml) and found it was in an excellent condition.

[xhochy]

Diff:

noarch::anndata-0.10.6-pyhd8ed1ab_0.conda
noarch::anndata-0.10.4-pyhd8ed1ab_0.conda
noarch::anndata-0.12.2-pyhd8ed1ab_1.conda
noarch::anndata-0.6.22.post1-py_0.tar.bz2
noarch::anndata-0.9.0-pyhd8ed1ab_0.conda
noarch::anndata-0.12.5-pyhd8ed1ab_0.conda
noarch::anndata-0.11.0-pyhd8ed1ab_0.conda
noarch::anndata-0.12.3-pyhd8ed1ab_0.conda
noarch::anndata-0.11.4-pyhd8ed1ab_0.conda
noarch::anndata-0.12.1-pyhd8ed1ab_0.conda
noarch::anndata-0.6.22.post1-py_1.tar.bz2
noarch::anndata-0.10.9-pyhd8ed1ab_0.conda
noarch::anndata-0.12.6-pyhd8ed1ab_0.conda
noarch::anndata-0.10.1-pyhd8ed1ab_0.conda
noarch::anndata-0.10.5-pyhd8ed1ab_0.conda
noarch::anndata-0.9.1-pyhd8ed1ab_0.conda
noarch::anndata-0.10.2-pyhd8ed1ab_0.conda
noarch::anndata-0.10.8-pyhd8ed1ab_0.conda
noarch::anndata-0.11.1-pyhff2d567_0.conda
noarch::anndata-0.10.3-pyhd8ed1ab_0.conda
noarch::anndata-0.10.5.post1-pyhd8ed1ab_0.conda
noarch::anndata-0.10.0-pyhd8ed1ab_0.conda
noarch::anndata-0.11.0-pyhff2d567_1.conda
noarch::anndata-0.8.0-pyhd8ed1ab_1.tar.bz2
noarch::anndata-0.9.0-pyhd8ed1ab_1.conda
noarch::anndata-0.12.4-pyhd8ed1ab_0.conda
noarch::anndata-0.11.2-pyhd8ed1ab_0.conda
noarch::anndata-0.12.2-pyhd8ed1ab_0.conda
noarch::anndata-0.10.7-pyhd8ed1ab_0.conda
noarch::anndata-0.11.1-pyhd8ed1ab_1.conda
noarch::anndata-0.9.2-pyhd8ed1ab_0.conda
noarch::anndata-0.11.3-pyhd8ed1ab_0.conda
+    "pandas<3",
noarch::anndata-0.12.0-pyhd8ed1ab_0.conda
+  "constrains": [
+    "pandas<3"
+  ],