Typo in Section 4.1.3 - "Credential Issuer" should be "Wallet" in credential_offer_uri caching note

[luikyv]

I believe there is a small typo in section 4.1.3 (Sending Credential Offer by Reference Using credential_offer_uri Parameter)

Note: The Credential Issuer SHOULD use a unique URI for each Credential Offer utilizing distinct parameters, or otherwise prevent the Credential Issuer from caching the credential_offer_uri.

The second mention of "Credential Issuer" should be "Wallet", as it's the wallet that may cache the result of fetching the credential_offer_uri.

Note: The Credential Issuer SHOULD use a unique URI for each Credential Offer utilizing distinct parameters, or otherwise prevent the Wallet from caching the credential_offer_uri.