Make with protobuf

[julien-ft]

Hi,

First of all, thank you for your work !

I have a problem when I try to make with protobuf :

[24%] Built target dot_dep
src/transitmap/output/protobuf/CMakeFiles/proto.dir/build.make:73: *** target pattern contains no '%'.  Stop.
make[1]: *** [CMakeFiles/Makefile2:668: src/transitmap/output/protobuf/CMakeFiles/proto.dir/all] Error 2
make: *** [Makefile:146: all] Error 2

This is the problematic line (line 73) :

src/transitmap/output/protobuf/vector_tile.pb.h: src/transitmap/output/protobuf/protobuf::protoc

When I remove protobuf packages and do again the cmake + make, it's works, i can generate json and svg

I work on Ubuntu 22.04.4 LTS

Thank you !