CI: Add 'conda list' for azure/posix after activate 'pandas-dev'

[h-vetinari]

Running into debugging problems in #24984 because conda list is never called after installing the pandas-dev environment.

It seems that this is just missing in azure/posix (I reflected the comment in other locations not least to show where else this is already done).

[gfyoung]

I thought this should show up when you run conda install ? Or do we not do that here?

[h-vetinari]

@gfyoung
Check out an azure posix build, e.g. this line and below, there's nothing after the env is installed.

It is present in the windows-equivalent, see the diff (where I add the comment)

[codecov]

Codecov Report

Merging #25377 into master will decrease coverage by <.01%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master   #25377      +/-   ##
==========================================
- Coverage   91.73%   91.73%   -0.01%     
==========================================
  Files         173      173              
  Lines       52838    52838              
==========================================
- Hits        48472    48470       -2     
- Misses       4366     4368       +2

Flag	Coverage Δ
#multiple	90.29% <ø> (-0.01%)	⬇️
#single	41.29% <ø> (-0.43%)	⬇️

Impacted Files	Coverage Δ
pandas/io/excel/_xlrd.py	91.04% <0%> (-2.99%)	⬇️

---

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[codecov]

Codecov Report

Merging #25377 into master will decrease coverage by <.01%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master   #25377      +/-   ##
==========================================
- Coverage   91.73%   91.73%   -0.01%     
==========================================
  Files         173      173              
  Lines       52838    52838              
==========================================
- Hits        48472    48470       -2     
- Misses       4366     4368       +2

Flag	Coverage Δ
#multiple	90.29% <ø> (-0.01%)	⬇️
#single	41.29% <ø> (-0.43%)	⬇️

Impacted Files	Coverage Δ
pandas/io/excel/_xlrd.py	91.04% <0%> (-2.99%)	⬇️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update b2c7519...a953fd6. Read the comment docs.

[saurav2608]

@h-vetinari - I have a pending PR #24632 . Can you have a look? The PR unifies env creation script.

[h-vetinari]

Closing in favour of #24632.