Merge pull request #42 from riley-martin/master

Updating dependency `parking_lot`

Author: jackyarndley

Cargo.toml

@@ -16,7 +16,7 @@ smallvec = "^1.4.2"
 clap = "^3.0.0-beta.1"
 config = "^0.9"
 half = "^1.6.0"
-parking_lot = "^0.11.2"
+parking_lot = "0.12.1"
 colorgrad = "^0.5.0"
 
 [dependencies.rug]