FIX: Trying to fix CI...

FindTurtle.cmake

@@ -8,7 +8,7 @@ FIND_PATH(
     HINTS
         $ENV{TURTLE_INCLUDE_DIR}
         ${TURTLE_INCLUDE_DIR}
-        external_dependencies/turtle
+        external_dependencies/turtle/
 
     PATHS
         /usr
@@ -19,6 +19,7 @@ FIND_PATH(
     PATH_SUFFIXES
         include
         turtle
+        include/turtle/include/turtle
         include/turtle
 )
 # Set TURTLE_FOUND honoring the QUIET and REQUIRED arguments