Allow for missing udevadm (i.e. GHA)

util/env-bootstrap.sh

@@ -413,9 +413,13 @@ __EOT__
         done
 
         # Reload udev rules
+        if command -v udevadm >/dev/null 2>&1; then
             echo "Reloading udev rules..." >&2
             $(nsudo) udevadm control --reload-rules
             $(nsudo) udevadm trigger
+        else
+            echo "udevadm not found, skipping udev rules reload." >&2
+        fi
     }
 
     install_windows_drivers() {