publish release note for v1.9.10, v1.10.8, v1.11.4, v1,12.1

[zhzhuang-zju]

What type of PR is this?
/kind documentation

What this PR does / why we need it:
Recently karmada merged in several bug fixes, so the release team decided to advance the patch release. Note that v1.9.10 is the last patch version of release-1.9!

Which issue(s) this PR fixes:
Fixes #

Special notes for your reviewer:

Does this PR introduce a user-facing change?:

[karmada-bot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by:
Once this PR has been reviewed and has the lgtm label, please assign rainbowmango for approval. For more information see the Kubernetes Code Review Process.

The full list of commands accepted by this bot can be found here.

Needs approval from an approver in each of these files:

• docs/CHANGELOG/OWNERS

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment

[RainbowMango]

Note that v1.9.10 is the last path version of release-1.9!

patch

[codecov-commenter]

⚠️ Please install the to ensure uploads and comments are reliably processed by Codecov.

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 48.16%. Comparing base (471d850) to head (a9fce8f).
Report is 2 commits behind head on master.

❗ Your organization needs to install the Codecov GitHub app to enable full functionality.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #5953   +/-   ##
=======================================
  Coverage   48.15%   48.16%           
=======================================
  Files         664      664           
  Lines       54803    54799    -4     
=======================================
+ Hits        26393    26395    +2     
+ Misses      26693    26688    -5     
+ Partials     1717     1716    -1     

Flag	Coverage Δ
unittests	48.16% <ø> (+<0.01%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.