[secure storage] bug in vault use of signing with a version
[secure storage] bug in vault use of signing with a version

Closes: #5140
Approved by: joshlind

libra/libra,libra/libra,aptos-labs/aptos-core,aptos-labs/aptos-core,aptos-labs/aptos-core,libra/libra,aptos-labs/aptos-core,aptos-labs/aptos-core,aptos-labs/aptos-core,libra/libra,libra/libra,aptos-labs/aptos-core