keycloak: Enable WebAuthn

Registering a new required action is currently not supported, so it needs to be done manually. See upstream bug: https://github.com/mrparkers/terraform-provider-keycloak/issues/354

Configuring the WebAuthn policy is currently not supported, so it needs to be done manully. See upstream bug: https://github.com/mrparkers/terraform-provider-keycloak/issues/355

Fix #28 (closed)

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The terraform has been tested locally with Docker.

docker run -p 8080:8080 -e KEYCLOAK_USER=admin -e KEYCLOAK_PASSWORD=admin quay.io/keycloak/keycloak:11.0.0 -Dkeycloak.profile.feature.web_authn=enabled -Dkeycloak.profile.feature.account2=enabled -Dkeycloak.profile.feature.account_api=enabled

/cc @svenstaro