Serialize the integration tests

[mamercad]

SUMMARY

It looks like we're probably running into race conditions with concurrent integration test runs. It's probably a better idea to serialize them, regardless.

ISSUE TYPE

• Bugfix Pull Request

COMPONENT NAME

The integration tests.

[codecov]

Codecov Report

Merging #165 (8353a6e) into main (403130f) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main     #165   +/-   ##
=======================================
  Coverage   72.34%   72.34%           
=======================================
  Files           1        1           
  Lines          94       94           
  Branches       17       17           
=======================================
  Hits           68       68           
  Misses         24       24           
  Partials        2        2           

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[gundalow]

Nice, I didn't know about this GitHub Action feature.
Thank you for thinking about test stability.

[gundalow]

Integration tests only run on main, so need to merge this PR, then check the GHA results for the default branch (not the PR)