Should only run on passing KM commit

[slonka]

This run: https://github.com/Kong/mesh-perf/actions/runs/14232202928 failed because it tried to run on https://github.com/Kong/kong-mesh/commit/940ca7502610cb4bd0ffbbe4eebc2b94e5442df1 which did not succeed.

https://github.com/Kong/mesh-perf/actions/runs/14232202928/job/39884978406#step:7:2194

Error response from daemon: manifest for kong/kuma-dp:0.0.0-preview.v940ca7502 not found: manifest unknown: manifest unknown

We should only run on successfully built version.

Edit:

Seems like installer script for checking preview is broken: https://github.com/Kong/mesh-perf/actions/runs/14232202928/job/39884978406#step:6:4

INFO	Fetching latest preview commit..
INFO	Found preview commit: https://github.com/kong/kong-mesh/commit/940ca7502

[github-actions]

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