d/rules: override nlohmann-json3 ABI versioning
Similar to xeus FTBFS #1106446, I ran into this issue with openrgb #1106432 It happened as openrgb depended on hueplusplus - so I disabled the ABI versioning in both.
More details on the openrgb bug: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1106432
Tested by building and checking libxeus.so symbols are not versioned only.
Note, this change would have to be applied to all xeus packages that depend on libxeus.so as well.