Change NIXL build type to release

Author: tanmayv25

docker/common/install_nixl.sh

@@ -38,7 +38,8 @@ meson setup builddir \
     -Dcudapath_lib="$CUDA_PATH/lib64" \
     -Dcudapath_inc="$CUDA_PATH/include" \
     -Dgds_path="$GDS_PATH" \
-    -Dinstall_headers=true
+    -Dinstall_headers=true \
+    --buildtype=release
 
 cd builddir && ninja install
 cd ../..