Update Project.toml

Author: ChrisRackauckas

lib/BoundaryValueDiffEqCore/Project.toml

@@ -1,7 +1,7 @@
 name = "BoundaryValueDiffEqCore"
 uuid = "56b672f2-a5fe-4263-ab2d-da677488eb3a"
 authors = ["Qingyu Qu <[email protected]>"]
-version = "1.8.0"
+version = "1.7.0"
 
 [deps]
 ADTypes = "47edcb42-4c32-4615-8424-f2b9edc5f35b"