[v15] [buddy] fix(helm-chart): adjust to entrypoint within dockerfile

[fheinecke]

Backport #44607 to branch/v15

changelog: Fixed event-handler Helm charts using the wrong command when starting the event-handler container

[peikk0]

@fheinecke this is broken, the image doesn't have /usr/local/bin/teleport-plugin:

Warning  Failed     5s (x2 over 6s)  kubelet            Error: failed to create containerd task: failed to create shim task: OCI runtime create failed: runc create failed: unable to start container process: exec: "/usr/local/bin/teleport-plugin": stat /usr/local/bin/teleport-plugin: no such file or directory: unknown

[lavabyrd]

@fheinecke - is there a fix for this on the way? As @peikk0 mentioned, this doesn't work with 15.4.x currently

[fheinecke]

Hey folks, I missed a backport of some plugins work for v15. I have a fix in the works for this and plan on merging it tomorrow after some tests run.

[fheinecke]

A fix has been merged and will go out on the next v15 release (probably some time this week).