Since 7.1.2 shell: false commands with any argument fails with "undefined local variable or method `default_args' "

[zaratan]

Describe the bug
Since 7.1.2 (It works with 7.1.1) if a command is declared as shell: false it will fail if given any argument.

Here is the stacktrace:

Traceback (most recent call last):
        9: from /Users/pasind/.rvm/gems/ruby-2.7.4@shotgun/gems/dip-7.1.2/exe/dip:23:in `<main>'
        8: from /Users/pasind/.rvm/gems/ruby-2.7.4@shotgun/gems/dip-7.1.2/lib/dip/cli.rb:31:in `start'
        7: from /Users/pasind/.rvm/gems/ruby-2.7.4@shotgun/gems/thor-0.20.3/lib/thor/base.rb:466:in `start'
        6: from /Users/pasind/.rvm/gems/ruby-2.7.4@shotgun/gems/thor-0.20.3/lib/thor.rb:387:in `dispatch'
        5: from /Users/pasind/.rvm/gems/ruby-2.7.4@shotgun/gems/thor-0.20.3/lib/thor/invocation.rb:126:in `invoke_command'
        4: from /Users/pasind/.rvm/gems/ruby-2.7.4@shotgun/gems/thor-0.20.3/lib/thor/command.rb:27:in `run'
        3: from /Users/pasind/.rvm/gems/ruby-2.7.4@shotgun/gems/dip-7.1.2/lib/dip/cli.rb:85:in `run'
        2: from /Users/pasind/.rvm/gems/ruby-2.7.4@shotgun/gems/dip-7.1.2/lib/dip/commands/run.rb:30:in `execute'
        1: from /Users/pasind/.rvm/gems/ruby-2.7.4@shotgun/gems/dip-7.1.2/lib/dip/commands/run.rb:59:in `compose_arguments'
/Users/pasind/.rvm/gems/ruby-2.7.4@shotgun/gems/dip-7.1.2/lib/dip/commands/run.rb:84:in `get_args': undefined local variable or method `default_args' for #<Dip::Commands::Run:0x00007f939d82d628> (NameError)

To Reproduce
Steps to reproduce the behavior:

1. Provide dip.yml config

compose:
  files:
    - ./docker-compose.yml
interaction:
  rvm:
    description: Start rvm in the app container
    service: app_dev
    command: rvm
    shell: false

2. Provide docker-compose.yml
   Not really relevant. I can provide one if needed.

3. Run command
   dip rvm install 2.7.4

4. See error

Expected behavior
Should work.

Screenshots

The second dip command is using 7.1.1

Context (please complete the following information):

• OS: OSX 14
• Version 7.1.2

[zaratan]

I know what the problem is and how to fix it. I'll open a PR soon. I wanted to have a corresponding issue to document the problem.

[zaratan]

This commit is the culprit: 7d2c352