fix typo in project

ablaom · ablaom · commit 327f5a23660b · 2023-05-11T19:04:38.000+12:00
diff --git a/Project.toml b/Project.toml
@@ -8,7 +8,7 @@ InteractiveUtils = "b77e0a4c-d291-57a0-90e8-8db25a27a240"
 Statistics = "10745b16-79ce-11e8-11f9-7d13ad32a3b2"
 
 [compat]
-julia = 1.6
+julia = "1.6"
 
 [extras]
 SparseArrays = "2f01184e-e22b-5df5-ae63-d93ebab69eaf"
