[SEC-27555] Update documentation of workflows for security findings

[hugoqnc]

What does this PR do? What is the motivation?

• Update documentation of security trigger to include Security Findings (in addition to Signals). Also include that workflows can be manually triggered from Misconfiguration & Identity Risk side panels.
• Update the "Build a workflow" examples to use the right field paths, and remove the unnecessary step of using the Get security finding action when using the Security trigger.
  • Note: these new paths were introduced with this PR

Merge instructions

Merge readiness:

• Ready for merge

[github-actions]

Preview links (active after the build_preview check completes)

Modified Files

• https://docs-staging.datadoghq.com/hugo.queinnec/update-workflow-doc-for-security/actions/workflows/trigger
• https://docs-staging.datadoghq.com/hugo.queinnec/update-workflow-doc-for-security/security/cloud_security_management/review_remediate/workflows

[alex147]

A couple of comments, the rest looks good 👌🏼

[domalessi]

Left some feedback! Give that a review and let me know if you have any questions. Ping me when ready for re-review!

[domalessi]

This sentence is a little confusing to me. Is this what you mean?

Suggested change

	You can set up a workflow to trigger every time a Security Notification Rule fires, for both Security Signals and Security Findings.
	You can set up a workflow to trigger when a Security Notification Rule generates a Security Signal or Security Finding.

[hugoqnc]

You're right it wasn't clear, though a notification rule doesn't really "generate" a Signal or Finding, it just notifies on a detected Signal or Finding. I replaced it with:

- You can set up a workflow to trigger every time a Security Notification Rule fires, for both Security Signals and Security Findings.
+ You can set up a workflow to trigger whenever a Security Notification Rule sends a notification for either a Security Signal or a Security Finding.

[domalessi]

Thanks for all the changes! Committed a few final tiny tweaks. We're good to go :)