e2e: use Fedora 38 for the fedora test target

[marquiz]

Fedora 36 has been EOL'd. Plus, we build rpm packages targeting fedora:latest.

[codecov-commenter]

Codecov Report

Merging #1057 (36397a7) into master (e38b14b) will not change coverage. Report is 12 commits behind head on master. The diff coverage is 0.00%.

@@           Coverage Diff           @@
##           master    #1057   +/-   ##
=======================================
  Coverage   31.73%   31.73%           
=======================================
  Files          64       64           
  Lines        9816     9816           
=======================================
  Hits         3115     3115           
  Misses       6410     6410           
  Partials      291      291           

Files Changed	Coverage Δ
...i/resource-manager/control/page-migrate/demoter.go	17.95% <0.00%> (ø)

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[marquiz]

ping @askervin