improve yurtstaticset template metadata

[JameKeal]

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

/kind feature

What this PR does / why we need it:

If user defines different namespace in pod template with yurtstaticset namespace, yurtstaticset controller don't know how to handle this case.

Which issue(s) this PR fixes:

Fixes #1473

Special notes for your reviewer:

/assign @rambohe-ch

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

/kind feature

What this PR does / why we need it:

If user defines different namespace in pod template with yurtstaticset namespace, yurtstaticset controller don't know how to handle this case.

Which issue(s) this PR fixes:

Fixes #1473

Special notes for your reviewer:

/assign @rambohe-ch

Does this PR introduce a user-facing change?

other Note

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[codecov]

Codecov Report

Merging #1486 (9d3c53c) into master (b3ae2c7) will not change coverage.
The diff coverage is n/a.

❗ Current head 9d3c53c differs from pull request most recent head 87772d9. Consider uploading reports for the commit 87772d9 to get more accurate results

@@           Coverage Diff           @@
##           master    #1486   +/-   ##
=======================================
  Coverage   50.74%   50.74%           
=======================================
  Files         131      131           
  Lines       15576    15576           
=======================================
  Hits         7904     7904           
  Misses       6951     6951           
  Partials      721      721           

Flag	Coverage Δ
unittests	50.74% <ø> (ø)

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[sonarqubecloud]

SonarCloud Quality Gate failed.   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

No Coverage information
4.8% Duplication

[openyurt-bot]

[APPROVALNOTIFIER] This PR is APPROVED

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

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• OWNERS [rambohe-ch]

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[rambohe-ch]

/lgtm

[rambohe-ch]

/backport release-v1.3

[github-actions]

Successfully created backport PR for release-v1.3:

• [Backport release-v1.3] improve yurtstaticset template metadata #1591