// which enable OIDC.
func NewJwtAuthenticator(jwtRule *v1beta1.JWTRule, meshWatcher mesh.Watcher) (*JwtAuthenticator, error) {
	issuer := jwtRule.GetIssuer()
	jwksURL := jwtRule.GetJwksUri()
	// The key of a JWT issuer may change, so the key may need to be updated.
	// Based on https://pkg.go.dev/github.com/coreos/go-oidc/v3/oidc#NewRemoteKeySet