optimize(healthz): continuously check failed and return failure state

[1046102779]

currently, healthz client continuously checks success and return success state

[codecov]

Codecov Report

Merging #2781 (f8115b0) into master (70b44b2) will increase coverage by 0.04%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master    #2781      +/-   ##
==========================================
+ Coverage   58.76%   58.81%   +0.04%     
==========================================
  Files          87       87              
  Lines        7501     7502       +1     
==========================================
+ Hits         4408     4412       +4     
+ Misses       2798     2796       -2     
+ Partials      295      294       -1     

Impacted Files	Coverage Δ
pkg/health/health.go	100.00% <100.00%> (ø)
pkg/actors/internal/placement.go	86.53% <0.00%> (+1.92%)	⬆️

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