NO-JIRA: placate hadolint with an empty line

```
./jupyter/rocm/tensorflow/ubi9-python-3.12/Dockerfile.rocm:84:1 unexpected 'R' expecting a new line followed by the next instruction
```

Author: jiridanek

jupyter/rocm/tensorflow/ubi9-python-3.12/Dockerfile.rocm

@@ -81,6 +81,7 @@ RUN tee --append /etc/ld.so.conf.d/rocm.conf <<EOF
   /opt/rocm/lib
   /opt/rocm/lib64
 EOF
+
 RUN ldconfig
 
 # Restore notebook user workspace