feat: support proc-runner script for EL and CL clients

[kamuikatsurgi]

Right now, if we stop the bor and hv2 in the Docker containers spun up by kurtosis, the whole container is stopped, and we can't exec anything in that container.

I was able to do this by using the proc-runner script from here, thanks to @leovct:

• https://github.com/0xPolygon/kurtosis-cdk/blob/beda7747972df90b1b7c32d059bc5d5c78f14aaa/lib/cdk_erigon.star#L61-L90
• https://github.com/0xPolygon/kurtosis-cdk/blob/beda7747972df90b1b7c32d059bc5d5c78f14aaa/templates/proc-runner.sh#L5

But my changes were a bit unclean and a bit hacky as we were in a rush to test a few things for a fix.

[leovct]

Feature implemented for both heimdall-v2 and bor - erigon is still a wip