Fix controller problematic log output

[qiuming-best]

Signed-off-by: Ming mqiu@vmware.com

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Please add a summary of your change

• Upgrade controller-runtime to v0.12.2
• Implement String function for PeriodicalEnqueueSource

Does your change fix a particular issue?

Fixes #(issue)
fix #5571

Please indicate you've done the following:

• Accepted the DCO. Commits without the DCO will delay acceptance.
• Created a changelog file or added /kind changelog-not-required as a comment on this pull request.
• Updated the corresponding documentation in site/content/docs/main.

[codecov-commenter]

Codecov Report

Merging #5572 (bf1122b) into main (5c98e88) will increase coverage by 0.01%.
The diff coverage is 0.00%.

@@            Coverage Diff             @@
##             main    #5572      +/-   ##
==========================================
+ Coverage   40.90%   40.92%   +0.01%     
==========================================
  Files         239      239              
  Lines       20624    20629       +5     
==========================================
+ Hits         8437     8442       +5     
  Misses      11570    11570              
  Partials      617      617              

Impacted Files	Coverage Δ
pkg/util/kube/periodical_enqueue_source.go	67.30% <0.00%> (-7.17%)	⬇️
pkg/uploader/provider/kopia.go	56.91% <0.00%> (+4.06%)	⬆️

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