fix: packages get --ignore does work with "example"

[alestiago]

Description

Running:

very_good packages get -r --ignore example

Gets dependencies on the example directory.

Steps To Reproduce

1. Activate Very Good CLI:

dart pub global activate very_good_cli

2. Create a flutter package:

very_good create flutter_package my_package

3. Create an example package inside my_package (from my_package):

flutter create example --platforms web

4. Cleanmy_package/example (from my_package/example):

flutter clean && rm -rf pubspec.lock

Observe that build/, .dart_tool/ and pubspec.lock within examples are no longer existent.

5. Get dependencies (from my_package)

very_good packages get -r --ignore example

6. See that my_package/example has now build/, .dart_tool/ and pubspec.lock within the example directory meaning the tool run a pub get.

The logger only notifies:

✓ Running "flutter pub get" in .  (1.9s)

Expected Behavior
There is no pub get on the example directory when provided through ignore.

Additional Context
There is a hidden --no-example command that might be applicable.