The local executor wants to use only one CPU

[marcelm]

I have no idea why this did not happen before, but with CAW from master, I get this error message in the standard profile, running on a full milou node:

... in thread "Task submitter" nextflow.exception.ProcessNotRecoverableException: Process requirement exceed available CPUs -- req: 16; avail: 1

According to https://www.nextflow.io/docs/latest/config.html#scope-executor, it seems we need to set

executor.$local.cpus = 16

in the configuration to fix this.

I could not find a recent change that would have removed this setting, so I cannot explain why it suddenly stopped working.

[marcelm]

This has been fixed in #476