Bump gcc version for C++20 warnings

Author: bmhan12

src/python/pythonHelpers.hpp

@@ -86,7 +86,7 @@
     _Pragma( "GCC diagnostic push" ) \
     _Pragma( "GCC diagnostic ignored \"-Wpedantic\"" ) \
     _Pragma( "GCC diagnostic ignored \"-Wmissing-field-initializers\"" )
-    #if __GNUC__ > 8 
+    #if __GNUC__ > 11
       _Pragma( "GCC diagnostic ignored \"-Wc++20-extensions\"")
     #endif
 #endif