FIX: GDAL and PROJ are now located in /usr

docker/base-otb/Dockerfile

@@ -130,6 +130,5 @@ ENV PATH=/opt/otb/bin:$PATH
 ENV PYTHONPATH=/opt/otb/lib/python3/dist-packages:/opt/otb/lib/otb/python:$PYTHONPATH
 ENV LD_LIBRARY_PATH=/opt/otb/lib:$LD_LIBRARY_PATH
 ENV OTB_APPLICATION_PATH=/opt/otb/lib/otb/applications
-ENV PROJ_LIB=/opt/otb/share/proj
-ENV GDAL_DATA=/opt/otb/share/gdal
-ENV GEOTIFF_CSV=/opt/otb/share/epsg_csv
+ENV PROJ_LIB=/usr/share/proj
+ENV GDAL_DATA=/usr/share/gdal