Returns the public key for the cards integration service
curl --request GET \
--url https://api.light.inc/v1/card-customers/public-key \
--header 'Authorization: <api-key>'{
"publicKey": "<string>",
"expiryDate": "2023-12-25"
}curl --request GET \
--url https://api.light.inc/v1/card-customers/public-key \
--header 'Authorization: <api-key>'{
"publicKey": "<string>",
"expiryDate": "2023-12-25"
}