Fix: Propagate PICO_SDK_VERSION_* to parent scope in RP2040 port (#1326)

portable/ThirdParty/GCC/RP2040/CMakeLists.txt

diff --git a/portable/ThirdParty/GCC/RP2040/CMakeLists.txt b/portable/ThirdParty/GCC/RP2040/CMakeLists.txt
index cbd302d..e1034eb 100644
--- a/portable/ThirdParty/GCC/RP2040/CMakeLists.txt
+++ b/portable/ThirdParty/GCC/RP2040/CMakeLists.txt
@@ -45,6 +45,9 @@
             set(FREERTOS_KERNEL_PATH ${FREERTOS_KERNEL_PATH} PARENT_SCOPE)
             set(PICO_CONFIG_HEADER_FILES ${PICO_CONFIG_HEADER_FILES} PARENT_SCOPE)
             set(PICO_SDK_POST_LIST_FILES ${PICO_SDK_POST_LIST_FILES} PARENT_SCOPE)
+            set(PICO_SDK_VERSION_MAJOR ${PICO_SDK_VERSION_MAJOR} PARENT_SCOPE)
+            set(PICO_SDK_VERSION_MINOR ${PICO_SDK_VERSION_MINOR} PARENT_SCOPE)
+            set(PICO_SDK_VERSION_REVISION ${PICO_SDK_VERSION_REVISION} PARENT_SCOPE)
         endif()
     endif()
 endif()