fix: update routes in Kong when KongIngress object is updated

[hbagdi]

When KongIngress object is updated, the properties of affected routes in
Kong were not changed (#91). This was a known issue and was left as a future
TODO in the past.

This change picks up the changes from KongIngress and patches the routes
in Kong as needed.

[codecov-io]

Codecov Report

Merging #92 into master will decrease coverage by 0.09%.
The diff coverage is 0%.

@@            Coverage Diff            @@
##           master      #92     +/-   ##
=========================================
- Coverage   32.03%   31.94%   -0.1%     
=========================================
  Files          33       33             
  Lines        2859     2880     +21     
=========================================
+ Hits          916      920      +4     
- Misses       1830     1847     +17     
  Partials      113      113

Impacted Files	Coverage Δ
internal/ingress/controller/kong.go	0% <0%> (ø)	⬆️
cli/ingress-controller/main.go	22.22% <0%> (+2.61%)	⬆️

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[fffonion]

👍