Update Dockerfile.gpu

Fix issue DensifyPointCloud: error while loading shared libraries: libcuda.so.1: cannot open shared object file: No such file or directory

Author: sean-kenops

Dockerfile.gpu

@@ -11,6 +11,7 @@ RUN apt-get install -y nodejs unzip p7zip-full && npm install -g nodemon && \
     ln -s /code/SuperBuild/install/bin/entwine /usr/bin/entwine && \
     ln -s /code/SuperBuild/install/bin/pdal /usr/bin/pdal
 
+RUN echo /usr/local/cuda-11.2/compat >> /etc/ld.so.conf.d/989_cuda-11.conf && ldconfig
 
 RUN mkdir /var/www