rename user container to main container

[EraKin575]

Fixes #15007

Proposed Changes

*Renamed all UserContainer occurences to MainContainer in pkg package * *

Release Note

[knative-prow[bot]]

[APPROVALNOTIFIER] This PR is NOT APPROVED

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[knative-prow[bot]]

Welcome @EraKin575! It looks like this is your first PR to knative/serving 🎉

[knative-prow[bot]]

Hi @EraKin575. 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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[dprotaso]

/hold we shouldn't be duplciating work

https://github.com/knative/serving/issues/15007#issuecomment-2173124094

[EraKin575]

@dprotaso I think we can remove this from hold now

[dprotaso]

/ok-to-test

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 84.59%. Comparing base (af2c899) to head (5b1179f).

:exclamation: Current head 5b1179f differs from pull request most recent head 3fec7ce

Please upload reports for the commit 3fec7ce to get more accurate results.

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #15330      +/-   ##
==========================================
- Coverage   84.61%   84.59%   -0.02%     
==========================================
  Files         219      219              
  Lines       13584    13584              
==========================================
- Hits        11494    11492       -2     
- Misses       1724     1726       +2     
  Partials      366      366              

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[ReToCode]

Also before doing the actual rename of constants here, I'd start with checking the first points in https://github.com/knative/serving/issues/15007. Can ALL the occurences (including the actual values) in serving, pkg and docs be changed without breaking any public API? Only if the answer is true, we should actually rename stuff.

[knative-prow-robot]

PR needs rebase.

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[github-actions[bot]]

This Pull Request is stale because it has been open for 90 days with no activity. It will automatically close after 30 more days of inactivity. Reopen with /reopen. Mark as fresh by adding the comment /remove-lifecycle stale.