Adjust github actions to use setup-miniconda

[rly]

Tests that use the s-weigand/setup-conda action are failing on Windows. Replace with conda-incubator/setup-miniconda. Also update some versions of GH Actions used.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 86.83%. Comparing base (c453b68) to head (d2341c0).

Additional details and impacted files

@@            Coverage Diff             @@
##              dev     #525      +/-   ##
==========================================
+ Coverage   82.77%   86.83%   +4.05%     
==========================================
  Files          47       47              
  Lines        1504     1504              
==========================================
+ Hits         1245     1306      +61     
+ Misses        259      198      -61     

see 5 files with indirect coverage changes

[rly]

Some workflows were using conda when it did not need to IMO. So I removed that call. Only the ros3 one needed conda.

[stephprince]

Looks good to me! I don't think a CHANGELOG is necessary for the workflow changes unless you want to add one.

And thanks for updating the workflows that don't need conda. I believe the workflows using conda that did not need to were the ones recently updated in the PRs that replaced ros3 with remfile.