Add a section about configuring Cloud Armor to prevent bot traffic (#661)

* remove references to dataclass objects

* Fix a copy-paste error.

* remove extra file

* Fix a copy-paste error.

* Remove unused file

* Point to new improved GCP docs for making a Cloud Run service public

* Add section on cloud armor

* more work

* more work on cloud armor

* More work

* Update workflow section

* More updates

* formatting fixes

* Minor changes, edits, and fixes.

* Apply suggestion from @gemini-code-assist[bot]

Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>

* Apply suggestion from @gemini-code-assist[bot]

Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>

* fix erroneous step

* Apply suggestion from @gemini-code-assist[bot]

Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>

* Fixes suggested by Carolyn

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Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>

Author: kmoscoe