[Release-1.28] July Test Backports

[dereknola]

Proposed Changes

Backports for:

• Move test-compat docker test to GHA #10414
• For E2E upgrade test, automatically determine the channel to use #10461

Linked Issues

N/A Testing only changes

User-Facing Change

Further Comments

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 36.32%. Comparing base (d076d9a) to head (06e0920).
Report is 12 commits behind head on release-1.28.

❗ There is a different number of reports uploaded between BASE (d076d9a) and HEAD (06e0920). Click for more details.

HEAD has 15 uploads less than BASE

Flag	BASE (d076d9a)	HEAD (06e0920)
unittests	3	0
inttests	2	0
e2etests	16	6

Additional details and impacted files

@@               Coverage Diff                @@
##           release-1.28   #10509      +/-   ##
================================================
- Coverage         43.05%   36.32%   -6.74%     
================================================
  Files               163      160       -3     
  Lines             17606    14080    -3526     
================================================
- Hits               7581     5114    -2467     
+ Misses             8740     7967     -773     
+ Partials           1285      999     -286     

Flag	Coverage Δ
e2etests	36.32% <ø> (-9.64%)	⬇️
inttests	?
unittests	?

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