bug: KeyStore.toJWKS() doesn't exist in TS typings

[thomasvargiu]

KeyStore.toJWKS() method doesn't exist in TS typings.

Example code:

import { JWKS } from '@panva/jose';
const { KeyStore } = JWKS;
const keystore = new KeyStore();

keystore.toJWKS(true);

Environment:

• @panva/jose version: v1.0.1
• node version: v12.0.0

[panva]

@thomasvargiu good catch, can you open a PR?

[thomasvargiu]

@panva you're faster than me! :)