Lazy loading OSS

[oseoin]

Proposed changes

Update changes in 4764 to remove incorrect Plus requirement for lazy loading of certificates.

Checklist

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• I have read the CONTRIBUTING doc
• I have added tests that prove my fix is effective or that my feature works
• I have checked that all unit tests pass after adding my changes
• I have updated necessary documentation
• I have rebased my branch onto main
• I will ensure my PR is targeting the main branch and pulling from my branch from my own fork

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (f95be93) 52.00% compared to head (7fc73db) 52.01%.
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #4788      +/-   ##
==========================================
+ Coverage   52.00%   52.01%   +0.01%     
==========================================
  Files          60       60              
  Lines       17317    17313       -4     
==========================================
  Hits         9005     9005              
+ Misses       7999     7995       -4     
  Partials      313      313              

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[haywoodsh]

Hi @oseoin, I think the phrasing in the helm chart docs has to be changed as well.
https://github.com/nginxinc/kubernetes-ingress/blob/main/charts/nginx-ingress/README.md?plain=1#L461

|`controller.enableSSLDynamicReload` | Enable lazy loading for SSL Certificates for NGINX Plus. | true |

https://github.com/nginxinc/kubernetes-ingress/blob/main/charts/nginx-ingress/values.yaml#L466

 ## Enable dynamic reloading of certificates for NGINX Plus

Also, docs missing
https://github.com/nginxinc/kubernetes-ingress/blob/main/docs/content/installation/installing-nic/installation-with-helm.md