Bump newest python version in GHA workflows to 3.10

[Balandat]

We should make sure that we're py3.10 compatible.

[facebook-github-bot]

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[codecov[bot]]

Codecov Report

Merging #1304 (7aac523) into main (b4dabbd) will not change coverage. The diff coverage is n/a.

:exclamation: Current head 7aac523 differs from pull request most recent head bd82bde. Consider uploading reports for the commit bd82bde to get more accurate results

@@           Coverage Diff           @@
##             main    #1304   +/-   ##
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  Coverage   99.99%   99.99%           
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  Files         122      122           
  Lines       10675    10675           
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  Hits        10674    10674           
  Misses          1        1           

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[Balandat]

Failures seem to be due to some issues with pyro on py3.10.

[Balandat]

Closing this in favor of #1380