[v16] Workload ID: Guide for AWS JWT OIDC Federation (#47909)

* Start hacking on AWS + Workload Identity JWT SVID guide

* Add Roles Anywhere vs OIDC federation section

* Set up links for AWS OIDC federation docs

* Keep hacking on docs

* Add AWS Console steps

* Finish AWS OIDC federation guide

* Update docs/pages/enroll-resources/workload-identity/aws-oidc-federation.mdx

Co-authored-by: Paul Gottschling <[email protected]>

* Update docs/pages/enroll-resources/workload-identity/aws-oidc-federation.mdx

Co-authored-by: Paul Gottschling <[email protected]>

* Use 1 for all OL elementss

* Drop JWT from title

* Split role and policy creation

* Rewrite minimum version statement

* Remove the word "simple"

* Appease spell-checker

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Co-authored-by: Paul Gottschling <[email protected]>