Add ollama user to render group for Radeon support

For the ROCm libraries to access the driver, we need to add the ollama user
to the render group.

scripts/install.sh

@@ -76,6 +76,10 @@ configure_systemd() {
         status "Creating ollama user..."
         $SUDO useradd -r -s /bin/false -m -d /usr/share/ollama ollama
     fi
+    if getent group render >/dev/null 2>&1; then
+        status "Adding ollama user to render group..."
+        $SUDO usermod -a -G render ollama
+    fi
 
     status "Adding current user to ollama group..."
     $SUDO usermod -a -G ollama $(whoami)