Add check for namespace access

[jLopezbarb]

Signed-off-by: Javier López Barba javier@okteto.com

Proposed changes

• Check if the user has access to the namespace ONLY when there is a command that saves context

[codecov]

Codecov Report

Merging #1946 (d8f5c8e) into master (155601a) will decrease coverage by 0.01%.
The diff coverage is 0.00%.

@@            Coverage Diff             @@
##           master    #1946      +/-   ##
==========================================
- Coverage   33.58%   33.56%   -0.02%     
==========================================
  Files         122      122              
  Lines       13775    13782       +7     
==========================================
  Hits         4626     4626              
- Misses       8649     8656       +7     
  Partials      500      500              

Impacted Files	Coverage Δ
cmd/context/create.go	0.00% <0.00%> (ø)

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