Add license expiry checks

[pdabelf5]

Proposed changes

Add license expiry & Usage reporting grace period checks to the license reporter go routine. This change will add events to the Pod if either of the license expiry or the usage reporting grace period are within 30 days.

Adjust the reporting period from 24 hours down to an hour. This is inline with the period the event will appear on the pod.

Requires #6916

Checklist

Before creating a PR, run through this checklist and mark each as complete.

• 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

Attention: Patch coverage is 34.00000% with 33 lines in your changes missing coverage. Please review.

Project coverage is 52.95%. Comparing base (39b285d) to head (d950494).
Report is 32 commits behind head on main.

Files with missing lines	Patch %	Lines
internal/license_reporting/license_reporting.go	39.53%	26 Missing ⚠️
cmd/nginx-ingress/main.go	0.00%	4 Missing ⚠️
internal/nginx/manager.go	0.00%	3 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #6917   +/-   ##
=======================================
  Coverage   52.95%   52.95%           
=======================================
  Files          88       88           
  Lines       20591    20623   +32     
=======================================
+ Hits        10903    10921   +18     
- Misses       9239     9255   +16     
+ Partials      449      447    -2     

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[jjngx]

🚀