Fix black screen (bigtreetech#72)

Author: mkryuchkov

platformio.ini

@@ -43,13 +43,13 @@ lib_deps    =
               https://github.com/bigtreetech/AsyncElegantOTA.git
 
 [env:knomiv2]
-platform               = espressif32
+platform               = espressif32@6.4.0
 board                  = esp32s3r8
 build_flags            = ${env.build_flags}
                          -DKNOMIV2
 
 [env:knomiv1]
-platform               = espressif32
+platform               = espressif32@6.4.0
 board                  = esp32r8
 build_flags            = ${env.build_flags}
                          -DKNOMIV1