conn_extra parameter is not preserving case for json keys

[sakethsomaraju]

1. When running airflow locally with astro dev start and configuring connections with airflow_settings.yaml, astro cli do not preserve case for keys in conn_extra argument.

airflow:
  connections:
    - conn_id: test12
      conn_type: generic
      conn_host:
      conn_schema:
      conn_login:
      conn_password:
      conn_port:
      conn_extra:
        example_extra_field: example-value
        testVarCASE: UPPERCASE123

Here testVarCASE is getting converted into testvarcase

What CLI Version did you experience this bug?

1.30.0

What Operating System is the above CLI installed on?

MAC

🪜 Steps To Reproduce

1. astro dev init to create a new local project
2. update airflow_settings.yaml to add the above connection.
3. Run astro dev start and check connection with airflow connections get test12

📸 Screenshots