Fix deps upgrade

[Cali0707]

Fixes the deps upgrade. From conversation knative/pkg#3211, in a recent pkg PR the default string parsing for configmaps was changed, breaking our multi-line string parsing for broker channel template configs. It was decided to change the parser here, rather than revert the behaviour in pkg

Proposed Changes

• Update deps
• Add a parser for a multiline string to fix configmap parsing

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 52.36%. Comparing base (1a736e1) to head (50d7f9a).
Report is 3 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #8620      +/-   ##
==========================================
+ Coverage   52.35%   52.36%   +0.01%     
==========================================
  Files         399      399              
  Lines       25070    25076       +6     
==========================================
+ Hits        13126    13132       +6     
  Misses      11143    11143              
  Partials      801      801              

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[Cali0707]

/cc @matzew @dsimansk

[Cali0707]

/cc @aliok @dprotaso @evankanderson

[evankanderson]

/lgtm
/approve

[knative-prow]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: Cali0707, evankanderson

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[Cali0707]

/test reconciler-tests