Fix the 32-bit build

[AdrianBunk]

@brunoherbelin This fixes the 32-bit build broken by commit 1ffb514:
https://buildd.debian.org/status/fetch.php?pkg=vimix&arch=i386&ver=0.9.0%2Bgit20260228%2Bds-1&stamp=1772408000&raw=0

In file included from /build/reproducible-path/vimix-0.9.0+git20260228+ds/src/Streamer.h:8,
                 from /build/reproducible-path/vimix-0.9.0+git20260228+ds/src/Connection.cpp:31:
/build/reproducible-path/vimix-0.9.0+git20260228+ds/ext/OSCPack/osc/OscPacketListener.h: In member function ‘virtual void osc::OscPacketListener::ProcessPacket(const char*, int, const IpEndpointName&)’:
/build/reproducible-path/vimix-0.9.0+git20260228+ds/ext/OSCPack/osc/OscPacketListener.h:69:43: error: call of overloaded ‘ReceivedPacket(const char*&, int&)’ is ambiguous
   69 |         osc::ReceivedPacket p( data, size );
      |                                           ^
/build/reproducible-path/vimix-0.9.0+git20260228+ds/ext/OSCPack/osc/OscPacketListener.h:69:43: note: there are 2 candidates
In file included from /build/reproducible-path/vimix-0.9.0+git20260228+ds/src/Streamer.h:7:
/build/reproducible-path/vimix-0.9.0+git20260228+ds/ext/OSCPack/osc/OscReceivedElements.h:99:5: note: candidate 1: ‘osc::ReceivedPacket::ReceivedPacket(const char*, std::size_t)’
   99 |     ReceivedPacket( const char *contents, std::size_t size )
      |     ^~~~~~~~~~~~~~
/build/reproducible-path/vimix-0.9.0+git20260228+ds/ext/OSCPack/osc/OscReceivedElements.h:95:5: note: candidate 2: ‘osc::ReceivedPacket::ReceivedPacket(const char*, osc::osc_bundle_element_size_t)’
   95 |     ReceivedPacket( const char *contents, osc_bundle_element_size_t size )
      |     ^~~~~~~~~~~~~~
In file included from /build/reproducible-path/vimix-0.9.0+git20260228+ds/src/ControlManager.h:12,
                 from /build/reproducible-path/vimix-0.9.0+git20260228+ds/src/main.cpp:32:
/build/reproducible-path/vimix-0.9.0+git20260228+ds/ext/OSCPack/osc/OscPacketListener.h: In member function ‘virtual void osc::OscPacketListener::ProcessPacket(const char*, int, const IpEndpointName&)’:
/build/reproducible-path/vimix-0.9.0+git20260228+ds/ext/OSCPack/osc/OscPacketListener.h:69:43: error: call of overloaded ‘ReceivedPacket(const char*&, int&)’ is ambiguous
   69 |         osc::ReceivedPacket p( data, size );
      |                                           ^
/build/reproducible-path/vimix-0.9.0+git20260228+ds/ext/OSCPack/osc/OscPacketListener.h:69:43: note: there are 2 candidates
In file included from /build/reproducible-path/vimix-0.9.0+git20260228+ds/src/ControlManager.h:11:
/build/reproducible-path/vimix-0.9.0+git20260228+ds/ext/OSCPack/osc/OscReceivedElements.h:99:5: note: candidate 1: ‘osc::ReceivedPacket::ReceivedPacket(const char*, std::size_t)’
   99 |     ReceivedPacket( const char *contents, std::size_t size )
      |     ^~~~~~~~~~~~~~
/build/reproducible-path/vimix-0.9.0+git20260228+ds/ext/OSCPack/osc/OscReceivedElements.h:95:5: note: candidate 2: ‘osc::ReceivedPacket::ReceivedPacket(const char*, osc::osc_bundle_element_size_t)’
   95 |     ReceivedPacket( const char *contents, osc_bundle_element_size_t size )
      |     ^~~~~~~~~~~~~~

@alexmyczko FYI