Do not install curl on EL9

[ekohl]

dnf depends on curl. By default curl-minimal is installed and running dnf install curl results in an error.

[codecov]

Codecov Report

Merging #1732 (ac88530) into master (65b9e35) will decrease coverage by 0.01%.
The diff coverage is 50.00%.

@@            Coverage Diff             @@
##           master    #1732      +/-   ##
==========================================
- Coverage   74.78%   74.77%   -0.02%     
==========================================
  Files          82       82              
  Lines        4851     4853       +2     
==========================================
+ Hits         3628     3629       +1     
- Misses       1223     1224       +1     

Impacted Files	Coverage Δ
lib/beaker/host_prebuilt_steps.rb	73.59% <50.00%> (-0.16%)	⬇️

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