chore: move ReplicaSet creation and Rollout validation earlier during the reconciliation process.

[zachaller]

There are 3 main changes in this PR:

1. Move Rollouts validation up earlier in the reconcile process into the rollout context creation function.
2. Move replica set creation code up earlier in the reconciliation process into the rollout context creation function.
3. Change replica set creation so that it dose not depend on the calling code to pass a bool into the function but instead automatically determines if replica sets need to be created.

[codecov]

Codecov Report

Attention: Patch coverage is 91.89189% with 3 lines in your changes missing coverage. Please review.

Project coverage is 83.76%. Comparing base (36b9e15) to head (8c0e048).
Report is 63 commits behind head on master.

Files with missing lines	Patch %	Lines
rollout/controller.go	85.00%	2 Missing and 1 partial ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           master    #3657       +/-   ##
===========================================
+ Coverage        0   83.76%   +83.76%     
===========================================
  Files           0      162      +162     
  Lines           0    18515    +18515     
===========================================
+ Hits            0    15509    +15509     
- Misses          0     2131     +2131     
- Partials        0      875      +875     

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[github-actions]

Published E2E Test Results

  4 files    4 suites   3h 20m 46s ⏱️
113 tests 100 ✅  7 💤 6 ❌
458 runs  424 ✅ 28 💤 6 ❌

For more details on these failures, see this check.

Results for commit 8c0e048.

♻️ This comment has been updated with latest results.

[github-actions]

Published Unit Test Results

2 256 tests   2 256 ✅  2m 58s ⏱️
  128 suites      0 💤
    1 files        0 ❌

Results for commit 8c0e048.

♻️ This comment has been updated with latest results.

[sonarcloud]

Quality Gate passed

Issues
3 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
37.3% Duplication on New Code

See analysis details on SonarCloud

[leoluz]

LGTM