Function createDpopProof

createDpopProof(signer: DpopSigner, options: DpopProofOptions): Promise<string>
Builds one DPoP proof (RFC 9449 4.2); each call has a new jti, so build one per attempt.
Parameters
- signer: DpopSigner
  The DPoP key or key store.
- options: DpopProofOptions
  Method, URL, token, nonce and time.
Returns Promise<string>
The compact JWS.