TMCStepper 0.6.x is now Marlin-compatible (#15950)

platformio.ini

 lib_deps =
   U8glib-HAL=https://github.com/MarlinFirmware/U8glib-HAL/archive/bugfix.zip
   LiquidCrystal@1.3.4
-  TMCStepper@>=0.5.2,<0.6.0
+  TMCStepper@>=0.5.2,<1.0.0
   Adafruit NeoPixel@1.2.5
   LiquidTWI2=https://github.com/lincomatic/LiquidTWI2/archive/master.zip
   Arduino-L6470=https://github.com/ameyer/Arduino-L6470/archive/dev.zip