Android 密钥库名称。
To set the keystore name, you can specify an absolute path, or a relative path to your Unity project's ___location. If you provide
a relative path or an absolute path to the file inside of the project, Unity stores it as a relative path to the project. If you provide
an absolute path to the dedicated keystore ___location Unity stores it as a relative path to the dedicated ___location. All other absolute paths are stored as is.
When reading the value, this returns exactly what Unity stores internally. If the keystore is stored in the Unity project, or a dedicated keystore ___location,
a relative path is returned. This means that there is no way to identify if the path is relative to the Unity project, or dedicated keystore ___location. This
returns an absolute path, if an absolute path is stored in Unity.