Updates EngineFinder.cmake to correct the key that it's looking for

Templates/DefaultProject/Template/EngineFinder.cmake

@@ -30,27 +30,27 @@ endif()
 if(EXISTS ${manifest_path})
     file(READ ${manifest_path} manifest_json)
 
-    string(JSON engine_paths_count ERROR_VARIABLE json_error LENGTH ${manifest_json} engine_paths)
+    string(JSON engines_path_count ERROR_VARIABLE json_error LENGTH ${manifest_json} engines_path)
     if(json_error)
-        message(FATAL_ERROR "Unable to read key 'engine_paths' from '${manifest_path}', error: ${json_error}")
+        message(FATAL_ERROR "Unable to read key 'engines_path' from '${manifest_path}', error: ${json_error}")
     endif()
 
-    string(JSON engine_paths_type ERROR_VARIABLE json_error TYPE ${manifest_json} engine_paths)
+    string(JSON engines_path_type ERROR_VARIABLE json_error TYPE ${manifest_json} engines_path)
-    if(json_error OR NOT ${engine_paths_type} STREQUAL "OBJECT")
+    if(json_error OR NOT ${engines_path_type} STREQUAL "OBJECT")
-        message(FATAL_ERROR "Type of 'engine_paths' in '${manifest_path}' is not a JSON Object, error: ${json_error}")
+        message(FATAL_ERROR "Type of 'engines_path' in '${manifest_path}' is not a JSON Object, error: ${json_error}")
     endif()
 
-    math(EXPR engine_paths_count "${engine_paths_count}-1")
+    math(EXPR engines_path_count "${engines_path_count}-1")
-    foreach(engine_path_index RANGE ${engine_paths_count})
+    foreach(engine_path_index RANGE ${engines_path_count})
-        string(JSON engine_name ERROR_VARIABLE json_error MEMBER ${manifest_json} engine_paths ${engine_path_index})
+        string(JSON engine_name ERROR_VARIABLE json_error MEMBER ${manifest_json} engines_path ${engine_path_index})
         if(json_error)
-            message(FATAL_ERROR "Unable to read 'engine_paths/${engine_path_index}' from '${manifest_path}', error: ${json_error}")
+            message(FATAL_ERROR "Unable to read 'engines_path/${engine_path_index}' from '${manifest_path}', error: ${json_error}")
         endif()
 
         if(LY_ENGINE_NAME_TO_USE STREQUAL engine_name)
-            string(JSON engine_path ERROR_VARIABLE json_error GET ${manifest_json} engine_paths ${engine_name})
+            string(JSON engine_path ERROR_VARIABLE json_error GET ${manifest_json} engines_path ${engine_name})
             if(json_error)
-                message(FATAL_ERROR "Unable to read value from 'engine_paths/${engine_name}', error: ${json_error}")
+                message(FATAL_ERROR "Unable to read value from 'engines_path/${engine_name}', error: ${json_error}")
             endif()
 
             if(engine_path)