* Fix CI test groups.
* Make files more similar.
* Run most tests in both cloud and OS-specific environments.
* Run ACME tests in both cloud and OS-specific environments.
* Use different Python version for 2.9 cloud test.
* Revert "Run ACME tests in both cloud and OS-specific environments."
This reverts commit 967bda9438.
* Revert "Run most tests in both cloud and OS-specific environments."
This reverts commit 6e9f090afd.