* Update extra_runtime_dependencies test to test master proccess's gems
The `extra_runtime_dependencies` option allows one to activate gems in
the puma master process after "pruning" the master process with
`prune_bundler`. This is useful for activating gems that need to be
loaded in the master process, such as `puma_worker_killer`.
The integration test for `extra_runtime_dependencies` tested the
`$LOAD_PATH` of the worker process instead. Since workers are forked
from the master, it's normally fine to do this, but we might as well
test the master process's `$LOAD_PATH` directly if we can.
* Add test to refute that nio4r is loaded into puma master process
* Remove nio4r from puma master $LOAD_PATH
* Remove list of gems to activate from puma-wild
* Update History.md
Co-authored-by: Nate Berkopec <nate.berkopec@gmail.com>