Updated appveyor job to checkout a specific vcpkg commit ID.
Updated appveyor job to checkout a specific vcpkg commit ID.


Former-commit-id: 0109f80392058af16cd6170296c6d96791fe6e3a
syscoin/syscoin,syscoin/syscoin,syscoin/syscoin,syscoin/syscoin2,syscoin/syscoin,syscoin/syscoin,syscoin/syscoin,syscoin/syscoin,syscoin/syscoin2,syscoin/syscoin2,syscoin/syscoin,syscoin/syscoin2,syscoin/syscoin2,syscoin/syscoin2