update changelog after publishing v0.12.0

[tesshuflower]

• also update kubectl-volsync/volsync.yaml

Describe what this PR does

Is there anything that requires special attention?

Related issues:

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 67.6%. Comparing base (63c4f1f) to head (83c0ded).
Report is 4 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##            main   #1574     +/-   ##
=======================================
- Coverage   67.6%   67.6%   -0.1%     
=======================================
  Files         57      57             
  Lines       7584    7584             
=======================================
- Hits        5133    5132      -1     
- Misses      2154    2155      +1     
  Partials     297     297             

see 1 file with indirect coverage changes

[tesshuflower]

/cc @JohnStrunk

[JohnStrunk]

/lgtm

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: JohnStrunk, tesshuflower

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[openshift-ci]

@tesshuflower: The following tests failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
ci/prow/e2e-openshift-helm	83c0ded	link	unknown	/test e2e-openshift-helm
ci/prow/e2e-openshift-fips	83c0ded	link	unknown	/test e2e-openshift-fips

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