code clean up: rosa classic scripts

[mukrishn]

Type of change

• Refactor
• New feature
• Bug fix
• Optimization
• Documentation Update

Description

Cleaned up rosa script and moved hosted-cp pieces to a different file.

Related Tickets & Documents

• Related Issue #
• Closes #

Checklist before requesting a review

• I have performed a self-review of my code.
• If it is a core feature, I have added thorough tests.

Testing

• Please describe the System Under Test.
• Please provide detailed steps to perform tests related to this code change.
• How were the fix/results from this change verified? Please provide relevant screenshots or results.

[krishvoor]

/lgtm

[codecov-commenter]

Codecov Report

Merging #345 (85d6fff) into master (81bf4cc) will decrease coverage by 4.36%.
Report is 1 commits behind head on master.
The diff coverage is 97.72%.

@@            Coverage Diff             @@
##           master     #345      +/-   ##
==========================================
- Coverage   83.42%   79.06%   -4.36%     
==========================================
  Files          21       22       +1     
  Lines         953     1003      +50     
==========================================
- Hits          795      793       -2     
- Misses        158      210      +52     

Flag	Coverage Δ
gha	79.06% <97.72%> (-4.36%)	⬇️
python-3.9	79.06% <97.72%> (-4.36%)	⬇️
unit	79.06% <97.72%> (-4.36%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files Changed	Coverage Δ
dags/openshift_nightlies/dag.py	73.16% <93.33%> (-9.07%)	⬇️
dags/openshift_nightlies/models/release.py	90.69% <100.00%> (ø)
dags/openshift_nightlies/tasks/benchmarks/e2e.py	84.26% <100.00%> (-1.28%)	⬇️
...ags/openshift_nightlies/tasks/install/rosa/rosa.py	100.00% <100.00%> (ø)
...enshift_nightlies/tasks/install/rosahcp/rosahcp.py	100.00% <100.00%> (ø)
dags/openshift_nightlies/util/manifest.py	73.93% <100.00%> (-5.54%)	⬇️
dags/openshift_nightlies/util/var_loader.py	93.93% <100.00%> (ø)

... and 1 file with indirect coverage changes

[dry923]

LGTM!