[RS-2338] Update WAF docs following changes to configmap name and format

[gantony]

Product Version(s):
3.21 EP2 (so master only for now)

Issue:
https://tigera.atlassian.net/browse/RS-2338

Epic: https://tigera.atlassian.net/browse/PMREQ-704

Link to docs preview:

SME review:

• An SME has approved this change.

DOCS review:

• A member of the docs team has approved this change.

Additional information:

Merge checklist:

• Deploy preview inspected wherever changes were made
• Build completed successfully
• Test have passed

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[ctauchen]

LGTM. Ready to merge?

Do we need to copy this to the corresponding CC location? Currently, that's calico-cloud.

[gantony]

Do we need to copy this to the corresponding CC location? Currently, that's calico-

This is not available in Calico Cloud and will be when 3.21 EP2 is validated (not yet) and used in CC (not listed in https://tigera.atlassian.net/projects/PMREQ?selectedItem=com.atlassian.jira.jira-projects-plugin%3Arelease-page, so I assume early May release at the earliest).

I assume it's too early to update the docs?

If there is nothing to do, yes, that's ready to merge.

[ctauchen]

@gantony We're ready now to take changes related to 3.21 ep2 in the CC next directory (calico-cloud/threat/web-application-firewall.mdx). If you make the changes there, then they'll be ready for whenever CC picks up that version.

[ctauchen]

LGTM, thanks!