Mask value if the key is token

[robertsaxby]

Some connections (including the databricks connection) use the key 'token' in the 'extra' field (this has always been the case). Including it here so that these sensitive tokens are also masked by default.

The prior implementation just masked all of the 'extra' json: "XXXXXXXX" if conn.extra_dejson else None

airflow/airflow/hooks/base.py

Line 78 in 88199ee

"XXXXXXXX" if conn.extra_dejson else None,

---

^ Add meaningful description above

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[boring-cyborg]

Congratulations on your first Pull Request and welcome to the Apache Airflow community! If you have any issues or are unsure about any anything please check our Contribution Guide (https://github.com/apache/airflow/blob/main/CONTRIBUTING.rst)
Here are some useful points:

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[kaxil]

Good to see you contributing @robertsaxby 🚀

[github-actions]

The PR most likely needs to run full matrix of tests because it modifies parts of the core of Airflow. However, committers might decide to merge it quickly and take the risk. If they don't merge it quickly - please rebase it to the latest main at your convenience, or amend the last commit of the PR, and push it with --force-with-lease.

[boring-cyborg]

Awesome work, congrats on your first merged pull request!