Add check to ensure initialOwner for deployTransparentProxy is not a ProxyAdmin

[ericglau]

With OpenZeppelin Contracts v5, the initialOwner parameter when deploying a transparent proxy must not be a predeployed ProxyAdmin contract. The transparent proxy deploys its own ProxyAdmin using this initialOwner as the owner, therefore the initialOwner must be an EOA or a contract that is able to call functions on a ProxyAdmin.

This PR adds the following check: if the initialOwner is a contract that has an owner() getter which returns something that looks like an address, it might be a ProxyAdmin contract. In this case, throw an error.

It may have false positives if the initialOwner is some other contract (such as a smart account) which has an owner. If this false positive occurs and the user is sure that the initialOwner is a contract that can invoke functions on a ProxyAdmin but is not a ProxyAdmin itself, this check can be skipped with the unsafeSkipProxyAdminCheck option.