Update Stackdriver wording in docstrings

[Jasminekaur2005]

Updated Stackdriver wording in docstrings to the newer Google Operations / Cloud Monitoring naming. No functional code changes.

---

Was generative AI tooling used to co-author this PR?

• Yes (please specify the tool below)

---

• Read the Pull Request Guidelines for more information. Note: commit author/co-author name and email in commits become permanently public when merged.
• For fundamental code changes, an Airflow Improvement Proposal (AIP) is needed.
• When adding dependency, check compliance with the ASF 3rd Party License Policy.
• For significant user-facing changes create newsfragment: {pr_number}.significant.rst or {issue_number}.significant.rst, in airflow-core/newsfragments.

[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 Contributors' Guide (https://github.com/apache/airflow/blob/main/contributing-docs/README.rst)
Here are some useful points:

• Pay attention to the quality of your code (ruff, mypy and type annotations). Our prek-hooks will help you with that.
• In case of a new feature add useful documentation (in docstrings or in docs/ directory). Adding a new operator? Check this short guide Consider adding an example DAG that shows how users should use it.
• Consider using Breeze environment for testing locally, it's a heavy docker but it ships with a working Airflow and a lot of integrations.
• Be patient and persistent. It might take some time to get a review or get the final approval from Committers.
• Please follow ASF Code of Conduct for all communication including (but not limited to) comments on Pull Requests, Mailing list and Slack.
• Be sure to read the Airflow Coding style.
• Always keep your Pull Requests rebased, otherwise your build might fail due to changes not related to your commits.
  Apache Airflow is a community-driven project and together we are making it better 🚀.
  In case of doubts contact the developers at:
  Mailing List: dev@airflow.apache.org
  Slack: https://s.apache.org/airflow-slack

[shahar1]

Thanks for your contribution!
As long as we don't fully deprecate the "Stackdriver" naming (as #61009 aims to do), we'll still need to refer to the old name it in the docs to avoid confusion with the file names, i.e., Cloud Monitoring (formerly: Stackdriver).
Please take care of the above in your changes and I'll approve and merge it.

[Jasminekaur2005]

@shahar1 i'll keep that in mind this is my first time contributing i apologize for this

[KamranImaaz]

@shahar1 If you would allow. I would like to take this and close immediately.

[shahar1]

@shahar1 If you would allow. I would like to take this and close immediately.

Feel free to adopt this PR - please refer to #61009 for more context.
To clarify, I don't expect that you'll resolve the entire issue (as it is a complicated one) - but only the wordings in docstrings.
Good luck!

[KamranImaaz]

Sure Shahar I will raise a PR soon for this