switch code quality workflow to dev target and smoketest

[dakinggg]

What does this PR do?

This PR does two things:

• switches our code quality workflow back to dev target to avoid forcing install all for linting to pass
• adds a smoketest workflow that just imports the top level composer modules to avoid accidentally missing conditional imports

What issue(s) does this change relate to?

Closes CO-1866

Before submitting

• Have you read the contributor guidelines?
• Was this change discussed/approved in a GitHub issue first? It is much more likely to be merged if so.
• Did you update any related docs and document your change?
• Did you update any related tests and add any new tests related to your change? (see testing)
• Did you run the tests locally to make sure they pass?
• Did you run pre-commit on your change? (see the pre-commit section of prerequisites)

[dakinggg]

Before the import fix from hanlin's pr, running the smoketest locally

(composer-dev-3.10) danielking@MML-1B940F4333E2 composer % pytest tests/test_smoketest.py 
ImportError while loading conftest '/Users/danielking/github/composer/tests/conftest.py'.
tests/conftest.py:9: in <module>
    from composer.utils import reproducibility
composer/__init__.py:10: in <module>
    from composer.trainer import Trainer
composer/trainer/__init__.py:6: in <module>
    from composer.trainer.trainer import Trainer
composer/trainer/trainer.py:33: in <module>
    from composer.callbacks import CheckpointSaver, OptimizerMonitor
composer/callbacks/__init__.py:12: in <module>
    from composer.callbacks.health_checker import HealthChecker
composer/callbacks/health_checker.py:18: in <module>
    import slack_sdk
E   ModuleNotFoundError: No module named 'slack_sdk'

after

(composer-dev-3.10) danielking@MML-1B940F4333E2 composer % pytest tests/test_smoketest.py
=================================================================================== test session starts ===================================================================================
platform darwin -- Python 3.10.9, pytest-7.2.1, pluggy-1.0.0
rootdir: /Users/danielking/github/composer, configfile: pyproject.toml
plugins: pytest_codeblocks-0.16.1, anyio-3.6.2, httpserver-1.0.6
collected 1 item                                                                                                                                                                          

tests/test_smoketest.py .                                                                                                                                                           [100%]

==================================================================================== 1 passed in 0.02s ====================================================================================
(composer-dev-3.10) danielking@MML-1B940F4333E2 composer % 

[bandish-shah]

LGTM, thanks for adding this simple but likely very useful sanity check.