fix: clear stale Upgrading condition on upgrade re-trigger

[zmberg]

Ⅰ. Describe what this PR does

Ⅱ. Does this pull request fix one issue?

Ⅲ. Describe how to verify it

Ⅳ. Special notes for reviews

[kruise-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 ask for approval from zmberg by writing /assign @zmberg in a comment. For more information see:The Kubernetes Code Review Process.

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

Details

Needs approval from an approver in each of these files:

• pkg/controller/OWNERS

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

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 75.12%. Comparing base (4a570c0) to head (9e83de8).

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #349   +/-   ##
=======================================
  Coverage   75.12%   75.12%           
=======================================
  Files         141      141           
  Lines        9850     9851    +1     
=======================================
+ Hits         7400     7401    +1     
  Misses       2141     2141           
  Partials      309      309           

Flag	Coverage Δ
unittests	75.12% <100.00%> (+<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.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.