Setup RenovateBot (#6535)

arch/stm32/stm32.ini

@@ -1,7 +1,11 @@
 [stm32_base]
 extends = arduino_base
-platform = ststm32
-platform_packages = platformio/framework-arduinoststm32@https://github.com/stm32duino/Arduino_Core_STM32/archive/2.10.1.zip
+platform =
+  # renovate: datasource=custom.pio depName=platformio/ststm32 packageName=platformio/platform/ststm32
+  platformio/ststm32@19.1.0
+platform_packages =
+  # TODO renovate
+  platformio/framework-arduinoststm32@https://github.com/stm32duino/Arduino_Core_STM32/archive/2.10.1.zip
 extra_scripts =
   ${env.extra_scripts}
   post:extra_scripts/extra_stm32.py
@@ -35,6 +39,7 @@ debug_tool = stlink
 lib_deps =
   ${env.lib_deps}
   ${radiolib_base.lib_deps}
+  # renovate: datasource=git-refs depName=caveman99-stm32-Crypto packageName=https://github.com/caveman99/Crypto gitBranch=main
   https://github.com/caveman99/Crypto/archive/eae9c768054118a9399690f8af202853d1ae8516.zip
 
 lib_ignore =