Follow-up to #38429.
`Rails::Command.invoke` passes arguments through to the appropriate
command class. However, some command classes were ignoring those
arguments, and instead relying on the contents of ARGV. In particular,
RakeCommand expected ARGV to contain the arguments necessary to the Rake
task, and no other arguments. This caused the `webpacker:install` task
to fail when the `--dev` option from `rails new --dev` remained in ARGV.
This commit changes the relevant command classes to not rely on the
previous contents of ARGV. This commit also adds a missing `require`
for use of `Kernel#silence_warnings`.
Fixes#38459.
Gems like rspec-rails depend on `ARGV` being shifted, and `scaffold`
(for example) not being the first item in `ARGV`. This should allow
rspec-rails to be passing on Rails master.
