Merge pull request #473 from tearfur/patch-1

fix: `__cplusplus` check for `<version>` header

Author: ckormanyos

math/wide_integer/uintwide_t.h

@@ -13,7 +13,7 @@
   #pragma GCC diagnostic ignored "-Wmissing-declarations"
   #endif
 
-  #if ((__cplusplus < 202100L) || (defined(__GNUC__) && defined(__AVR__)))
+  #if ((__cplusplus < 202002L) || (defined(__GNUC__) && defined(__AVR__)))
   #include <ciso646>
   #else
   #include <version>