Update 99-platformio-udev.rules (platformio#4880)

Fix typo

Author: soiamsoNG

platformio/assets/system/99-platformio-udev.rules

@@ -177,4 +177,4 @@ ATTRS{product}=="*CMSIS-DAP*", MODE="0666", ENV{ID_MM_DEVICE_IGNORE}="1", ENV{ID
 ATTRS{idVendor}=="03eb", ATTRS{idProduct}=="2107", MODE="0666", ENV{ID_MM_DEVICE_IGNORE}="1", ENV{ID_MM_PORT_IGNORE}="1"
 
 # Espressif USB JTAG/serial debug unit
-ATTRS{idVendor}=="303a", ATTR{idProduct}=="1001", MODE="0666", ENV{ID_MM_DEVICE_IGNORE}="1", ENV{ID_MM_PORT_IGNORE}="1"
+ATTRS{idVendor}=="303a", ATTRS{idProduct}=="1001", MODE="0666", ENV{ID_MM_DEVICE_IGNORE}="1", ENV{ID_MM_PORT_IGNORE}="1"