Update feature maturities

[nkubala]

Feature	Change
apply	alpha -> beta
buildpacks support	beta -> GA
build artifact dependencies	alpha -> beta
debug	beta -> GA
default-repo	beta -> GA
status check	beta -> GA
global config	beta -> GA
init	alpha -> GA
dockerfile init	alpha -> GA
JSON-based init	alpha -> beta
init for Kubernetes manifests	alpha -> GA
manifest generation in init	alpha -> beta
render	beta -> GA
filesync	beta -> GA
infer sync	alpha -> beta
"latest" tagger	beta -> GA
template tagger	beta -> GA
version	beta -> GA

[codecov]

Codecov Report

Merging #6202 (326b872) into master (634ad08) will increase coverage by 0.02%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #6202      +/-   ##
==========================================
+ Coverage   71.20%   71.22%   +0.02%     
==========================================
  Files         481      481              
  Lines       21587    21670      +83     
==========================================
+ Hits        15371    15435      +64     
- Misses       5235     5252      +17     
- Partials      981      983       +2     

Impacted Files	Coverage Δ
cmd/skaffold/app/cmd/cmd.go	73.51% <0.00%> (-0.40%)	⬇️
pkg/skaffold/config/util.go	67.63% <0.00%> (+0.81%)	⬆️
pkg/skaffold/docker/image.go	81.30% <0.00%> (+1.21%)	⬆️
pkg/skaffold/survey/config.go	68.62% <0.00%> (+2.91%)	⬆️
pkg/skaffold/survey/survey.go	68.83% <0.00%> (+5.97%)	⬆️

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