feat(payment_method): auth token details vaulting through external vault (#10020)
Co-authored-by: Sahkal Poddar <sahkal.poddar@juspay.in>
Co-authored-by: sai-harsha-vardhan <harsha111hero@gmail.com>
Co-authored-by: hyperswitch-bot[bot] <148525504+hyperswitch-bot[bot]@users.noreply.github.com>