Add include flag to export

[thiagomedina]

Description

The securityContext field is now removed from the exported service by default. The --include flag was added to explicitly include this field when needed. For example: kn service export --include securityContext foo -o yaml

Since the --include flag accepts a list of values (comma-separated or repeated), it will be possible to add additional fields in the future

Changes

 * Removes securityContext from exported services by default  * Add new flag(--include ) to kn service export

Reference

Close #1788

Release Note

The kn service export command now removes the securityContext field from the exported service by default to improve portability.
A new --include flag was added to explicitly include this field when needed (e.g., kn service export my-service --include securityContext)

[knative-prow[bot]]

Hi @thiagomedina. Thanks for your PR.

I'm waiting for a knative member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

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[codecov[bot]]

Codecov Report

:x: Patch coverage is 76.00000% with 6 lines in your changes missing coverage. Please review. :white_check_mark: Project coverage is 70.07%. Comparing base (527deb6) to head (6a622a9). :warning: Report is 50 commits behind head on main.

Files with missing lines	Patch %	Lines
pkg/commands/service/export.go	76.00%	4 Missing and 2 partials :warning:

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2018   +/-   ##
=======================================
  Coverage   70.06%   70.07%           
=======================================
  Files         233      233           
  Lines       16464    16489   +25     
=======================================
+ Hits        11535    11554   +19     
- Misses       4123     4127    +4     
- Partials      806      808    +2     

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[thiagomedina]

/ok-to-test

[knative-prow[bot]]

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