[mtl] update parking_lot dependency to 0.9.0
@@ -37,8 +37,8 @@ cocoa = "0.18"
core-graphics = "0.17"
smallvec = "0.6"
spirv_cross = { version = "0.15", features = ["msl"] }
-parking_lot = "0.6.3"
-storage-map = "0.1.2"
+parking_lot = "0.9.0"
+storage-map = "0.2"
# This forces docs.rs to build the crate on mac, otherwise the build fails
# and we get no docs at all.
