CPP: Update Debian package version number after major version was updated in r369. Patch contributed by roubert@google.com.
CPP: Update Debian package version number after major version was updated in r369. Patch contributed by roubert@google.com.

JamesPosada/libphonenumber-csharp,joharmandav/libphonenumber-csharp,weitzhandler/libphonenumber-csharp,weitzhandler/libphonenumber-csharp,joharmandav/libphonenumber-csharp,erezak/libphonenumber-csharp,paulmutuaide/libphonenumber-csharp,langboost/libphonenumber-csharp,elijajah/libphonenumber-csharp,joharmandav/libphonenumber-csharp,elijajah/libphonenumber-csharp,weitzhandler/libphonenumber-csharp,erezak/libphonenumber-csharp,paulmutuaide/libphonenumber-csharp,jmue/libphonenumber-csharp,paulmutuaide/libphonenumber-csharp,JamesPosada/libphonenumber-csharp,elijajah/libphonenumber-csharp,jmue/libphonenumber-csharp,langboost/libphonenumber-csharp,jmue/libphonenumber-csharp,erezak/libphonenumber-csharp,paulmutuaide/libphonenumber-csharp,elijajah/libphonenumber-csharp,JamesPosada/libphonenumber-csharp,langboost/libphonenumber-csharp