Update Jaeger chart link

[isbang]

Which problem is this PR solving?

• reopen from Update Jaeger chart link #3327
• Move Helm chart to new jaegertracing/helm-charts #1976

Short description of the changes

• I think it is more reasonable to link to Jaeger chart repository not k8s chart repository

[albertteoh]

Thanks!

[codecov]

Codecov Report

Merging #3328 (0bd4152) into master (d1614eb) will increase coverage by 0.01%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #3328      +/-   ##
==========================================
+ Coverage   96.00%   96.02%   +0.01%     
==========================================
  Files         259      259              
  Lines       15434    15434              
==========================================
+ Hits        14817    14820       +3     
+ Misses        524      521       -3     
  Partials       93       93              

Impacted Files	Coverage Δ
pkg/config/tlscfg/cert_watcher.go	94.73% <0.00%> (+2.10%)	⬆️
cmd/collector/app/server/zipkin.go	70.73% <0.00%> (+2.43%)	⬆️

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