Automatic merge from submit-queue. If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>.
Bump addon manager version used to 6.5
**What this PR does / why we need it**:
Bump addon manager version to use #55466. This adds leader election-like mechanism to addon manager.
**Which issue(s) this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close the issue(s) when PR gets merged)*:
**Special notes for your reviewer**:
Release note copied from #55466. This is intended to be cherrypicked into 1.7 and 1.8 branches.
**Release note**:
```release-note
Addon manager supports HA masters.
```
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