chromedriver: 2.37 -> 2.38

Semi-automatic update generated by https://github.com/ryantm/nixpkgs-update tools.

This update was made based on information from https://repology.org/metapackage/chromedriver/versions.

These checks were done:

- built on NixOS
- ran ‘/nix/store/bnjr4qgd68lh8fdz2hxz7qrc1zvvxkni-chromedriver-2.38/bin/chromedriver -h’ got 0 exit code
- ran ‘/nix/store/bnjr4qgd68lh8fdz2hxz7qrc1zvvxkni-chromedriver-2.38/bin/chromedriver --help’ got 0 exit code
- found 2.38 with grep in /nix/store/bnjr4qgd68lh8fdz2hxz7qrc1zvvxkni-chromedriver-2.38
- directory tree listing: https://gist.github.com/8ba491f60826e1ad2389e69f92fb6116

pkgs/development/tools/selenium/chromedriver/default.nix

@@ -6,7 +6,7 @@ let
   allSpecs = {
     "x86_64-linux" = {
       system = "linux64";
-      sha256 = "1pryrz4ry0pk6kawvj8sxhpqh6c6npxhm187412y2l598dcf9pwl";
+      sha256 = "1h7avlns00hd44ayi53lvdj2l85h9higky0jk7bad07hm39nagks";
     };
 
     "x86_64-darwin" = {
@@ -28,7 +28,7 @@ let
 in
 stdenv.mkDerivation rec {
   name = "chromedriver-${version}";
-  version = "2.37";
+  version = "2.38";
 
   src = fetchurl {
     url = "http://chromedriver.storage.googleapis.com/${version}/chromedriver_${spec.system}.zip";