Normalize repeater target names

variants/promicro/platformio.ini

@@ -34,7 +34,7 @@ lib_deps= ${nrf52_base.lib_deps}
   adafruit/Adafruit BMP280 Library@^2.6.8
   stevemarple/MicroNMEA @ ^2.0.6
 
-[env:Faketec_Repeater]
+[env:Faketec_repeater]
 extends = Faketec
 build_src_filter = ${Faketec.build_src_filter}
   +<../examples/simple_repeater>