Hi,
I noticed keepalived is pinned on commit 8af889bc which is somewhere between version 2.2.4 and 2.2.5. It seems lie a wise idea to at least go to an official release.
Since keepalived seldom breaks within the same release branch upgrading to 2.2.7 shouldn't be a problem. I did some simple testing by compiling and installing keepalived on VyOS 1.4-20220820 and found no problems. I will create a pull request and reference this task.
Sander