fix(gateway): don't reset status when reconciling

[michaelbeaumont]

Remove the call to Get which resets the previous updateStatus

[codecov-commenter]

Codecov Report

Merging #3470 (e6737f3) into master (7f31204) will decrease coverage by 0.00%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #3470      +/-   ##
==========================================
- Coverage   51.92%   51.92%   -0.01%     
==========================================
  Files         946      946              
  Lines       54867    54865       -2     
==========================================
- Hits        28492    28489       -3     
+ Misses      24154    24153       -1     
- Partials     2221     2223       +2     

Impacted Files	Coverage Δ
...e/k8s/controllers/gatewayapi/gateway_controller.go	0.00% <ø> (ø)
pkg/mads/v1/client/client.go	41.25% <0.00%> (-2.50%)	⬇️
pkg/core/resources/model/rest/resource.go	67.94% <0.00%> (-1.29%)	⬇️
api/observability/v1/mads.pb.go	34.53% <0.00%> (-1.04%)	⬇️
pkg/core/resources/manager/cache.go	88.31% <0.00%> (+2.59%)	⬆️

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[jpeach]

Could you please explain the change in the commit message?