Update documentation for api and auth modules

docs/source/module/api/v1/index.rst

docs/source/module/api/v1/processes.rst

docs/source/module/auth/api_key_auth.rst

docs/source/module/auth/index.rst

docs/source/module/auth/oidc.rst

docs/source/module/auth/oidc_policy_helper.rst

docs/source/module/auth/opa.rst

docs/source/module/auth/security.rst

docs/source/module/auth/settings.rst