Code static type checker pre-commit hook

[dbeatty10]

Use mypy for static type checking within a pre-commit hook.

Example configs:

• https://github.com/dbt-labs/dbt-core/blob/b3440417ad1e38a40c488c3632a63f5d2e0c88f4/.pre-commit-config.yaml#L40-L63
• https://github.com/dbt-labs/dbt-core/blob/065ab2ebc2104635770f49ca48bc434532d3ef41/pyproject.toml#L1-L5