set companion radios with esp32c3 esp32c6 and esp32s3 boards to max 300 contacts

variants/lilygo_tlora_c6/platformio.ini

@@ -67,7 +67,7 @@ lib_deps =
 [env:LilyGo_Tlora_C6_companion_radio_ble]
 extends = tlora_c6
 build_flags = ${tlora_c6.build_flags}
-  -D MAX_CONTACTS=100
+  -D MAX_CONTACTS=300
   -D MAX_GROUP_CHANNELS=8
   -D BLE_PIN_CODE=123456
   -D BLE_DEBUG_LOGGING=1