add a parameter for yurt-manager to disable independent webhooks

[xavier-hou]

What type of PR is this?

Uncomment only one /kind <> line, hit enter to put that in a new line, and remove leading whitespace from that line:
/kind bug
/kind documentation
/kind enhancement
/kind good-first-issue
/kind feature
/kind question
/kind design
/sig ai
/sig iot
/sig network
/sig storage

What this PR does / why we need it:

Which issue(s) this PR fixes:

Fixes #1395

Special notes for your reviewer:

Does this PR introduce a user-facing change?

other Note

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In response to this:

What type of PR is this?

Uncomment only one /kind <> line, hit enter to put that in a new line, and remove leading whitespace from that line:
/kind bug
/kind documentation
/kind enhancement
/kind good-first-issue
/kind feature
/kind question
/kind design
/sig ai
/sig iot
/sig network
/sig storage

What this PR does / why we need it:

Which issue(s) this PR fixes:

Fixes #1395

Special notes for your reviewer:

Does this PR introduce a user-facing change?

other Note

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[codecov]

Codecov Report

Merging #1399 (7d62595) into master (801b25b) will increase coverage by 0.01%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #1399      +/-   ##
==========================================
+ Coverage   51.04%   51.05%   +0.01%     
==========================================
  Files         132      132              
  Lines       15568    15568              
==========================================
+ Hits         7947     7949       +2     
+ Misses       6896     6895       -1     
+ Partials      725      724       -1     

Flag	Coverage Δ
unittests	51.05% <ø> (+0.01%)	⬆️

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see 1 file with indirect coverage changes

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[sonarqubecloud]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
1 Code Smell

No Coverage information
3.0% Duplication

[openyurt-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: rambohe-ch, xavier-hou

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[rambohe-ch]

/lgtm

[rambohe-ch]

Fixes #1394