Reduce queries to python version

Instead of doing at least 2 queries for python infos, now requires only
1 query (in ideal condition), and the result is cached.

src/base/utils/version.h

@@ -58,7 +58,7 @@ namespace Utils
 
         template <typename ... Other>
         constexpr Version(Other ... components)
-            : m_components {{components ...}}
+            : m_components {{static_cast<T>(components) ...}}
         {
         }
 
@@ -129,6 +129,11 @@ namespace Utils
             return res;
         }
 
+        constexpr bool isValid() const
+        {
+            return (*this != ThisType {});
+        }
+
         constexpr bool operator==(const ThisType &other) const
         {
             return (m_components == other.m_components);