Fix version extraction

Author: d-frey

.conan/build.py

@@ -54,7 +54,7 @@ def stable_branch_pattern(self):
     def reference(self):
         """ Read project version from CMake file to create Conan referece
         """
-        pattern = re.compile(r"project \(taocpp-operators VERSION (\d+\.\d+\.\d+) LANGUAGES CXX\)")
+        pattern = re.compile(r"project\(taocpp-operators VERSION (\d+\.\d+\.\d+) LANGUAGES CXX\)")
         version = None
         with open('CMakeLists.txt') as file:
             for line in file: