Rename fail stop dag property to fail fast

[hprassad]

closes: #45229
This PR renames fail_stop DAG property to fail_fast, the changes made to relevant files

---

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In case of backwards incompatible changes please leave a note in a newsfragment file, named {pr_number}.significant.rst or {issue_number}.significant.rst, in newsfragments.

[boring-cyborg]

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[amoghrajesh]

@hprassad FYI, I updated your PR description to link the issue.

[Lee-W]

Overall, I'm good with this PR, but we'll need a newsfragment for it

[amoghrajesh]

There are a couple of occurences which have been missed in tests.
Ref:

Also, needs a newsfragment addition. Example: https://github.com/apache/airflow/pull/43902/files#diff-802ca1cc091ad2e4489cfdb8cb02678d0bc42db3a6b9081859a2ee66b415b94e

[amoghrajesh]

@Lee-W do we have to add this one into migration rules too?

[Lee-W]

@Lee-W do we have to add this one into migration rules too?

Yes, this can be easily detected. I’ll create a PR for this later

[potiuk]

@hprassad - I rebased it -> we found and issue with @jscheffl with the new caching scheme - fixed in #45347 that would run "main" version of the tests.

[Lee-W]

I think we'll need newsfragment for this one

https://github.com/apache/airflow/blob/main/contributing-docs/16_contribution_workflow.rst#step-4-prepare-pr

[amoghrajesh]

Yeah the changes look good @hprassad. Can you please add newsfragment as mentioned by @Lee-W?

[hprassad]

@amoghrajesh & @Lee-W , I have added file in newsfragments folder for the PR

[amoghrajesh]

One nit, but looks good to me! Thanks @hprassad!

I would also wait for approval from @Lee-W on this.

[amoghrajesh]

@hprassad Few checks are failing. Can you please take a look and fix it?

[amoghrajesh]

@hprassad gentle ping. Could you please handle the review comments and rebase this Pull Request? We are waiting on this one for #44951

[Lee-W]

@amoghrajesh I just updated it. Please take a final look. Once this is merged, I'll create a ruff PR for migration rule. Thanks!

[amoghrajesh]

One comment, otherwise looks good

[boring-cyborg]

Awesome work, congrats on your first merged pull request! You are invited to check our Issue Tracker for additional contributions.

[amoghrajesh]

@hprassad congratulations on your first PR merge! 🥇