hide render command

[glours]

- What I did Hide render command

- How I did it pass hidden flag to true in render command

- How to verify it

• docker app --help should not display render command
• docker app render should display render command help
• docker app render should behave as previously

- A picture of a cute animal (not mandatory but encouraged)

[codecov[bot]]

Codecov Report

Merging #665 into master will decrease coverage by 0.29%. The diff coverage is 100%.

@@            Coverage Diff            @@
##           master     #665     +/-   ##
=========================================
- Coverage    72.1%   71.81%   -0.3%     
=========================================
  Files          57       52      -5     
  Lines        3105     2647    -458     
=========================================
- Hits         2239     1901    -338     
+ Misses        562      501     -61     
+ Partials      304      245     -59

Impacted Files	Coverage Δ
internal/commands/render.go	81.25% <100%> (+0.6%)	:arrow_up:
internal/commands/root.go	72.11% <0%> (-14.39%)	:arrow_down:
internal/commands/push.go	45.22% <0%> (-6.75%)	:arrow_down:
internal/compose/compose.go	74.35% <0%> (-5.13%)	:arrow_down:
types/parameters/parameters.go	93.65% <0%> (-3.18%)	:arrow_down:
internal/commands/build/compose.go
internal/commands/build/build.go
internal/commands/build/types.go
internal/packager/bundle.go
internal/commands/build/digest.go

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