feat(forge(bin)): Move coverage setup from bin

[nhtyy]

Component

Forge

Describe the feature you would like

Tracked by #9012

Currently, the easiest way to get LCOV data from forge tests in the server is to the run the bin (and sanitize the foundry toml), because alot happens in the bin file

I propose moving it to the lib so its more accessible to users, probably extending the runner

Additional context

No response