Fix failing pre-commit hook mypy-python

[tatiana]

Context

If we run

$ pre-commit run --all-files

We currently get:

Check if .env file is empty...................................................Passed
check for added large files...................................................Passed
check for merge conflicts.....................................................Passed
check toml....................................................................Passed
check yaml....................................................................Passed
debug statements (python).....................................................Passed
fix end of files..............................................................Passed
mixed line ending.............................................................Passed
pretty format json............................................................Passed
trim trailing whitespace......................................................Passed
Run codespell to check for common misspellings in files.......................Passed
rst ``code`` is two backticks.................................................Passed
check for not-real mock methods...............................................Passed
CRLF end-lines remover........................................................Passed
Tabs remover..................................................................Passed
pyupgrade.....................................................................Passed
ruff..........................................................................Passed
black.........................................................................Passed
blacken-docs..................................................................Passed
mypy-python...................................................................Failed
- hook id: mypy
- exit code: 1

cosmos/profiles/base.py:45: error: "DbtProfileConfigVars" has no attribute "__dataclass_fields__"  [attr-defined]
cosmos/operators/local.py:228: error: Item "None" of "BaseOperator | MappedOperator | None" has no attribute "template_fields"  [union-attr]
Found 2 errors in 2 files (checked 65 source files)

Acceptance criteria

• Pre commit checks should pass
• Understand/fix why this check is being skipped in the CI