bat-extras: 20200515-dev -> 2021.04.06

pkgs/tools/misc/bat-extras/default.nix

@@ -21,15 +21,13 @@ let
   # This includes the complete source so the per-script derivations can run the tests.
   core = stdenv.mkDerivation rec {
     pname   = "bat-extras";
-    # there hasn't been a release since 2020-05-01 but there are important bugfixes
-    # to the test suite so we'll pull the latest commit as of 2020-06-17.
-    version = "20200515-dev"; # latest commit was dated 2020-05-15
+    version = "2021.04.06";
 
     src = fetchFromGitHub {
       owner  = "eth-p";
       repo   = pname;
-      rev    = "3029b6749f61f7514e9eef30e035cfab0e31eb1d";
-      sha256 = "08mb94k2n182ql97c5s5j1v7np25ivynn5g0418whrx11ra41wr7";
+      rev    = "v${version}";
+      sha256 = "sha256-MphI2n+oHZrw8bPohNGeGdST5LS1c6s/rKqtpcR9cLo=";
       fetchSubmodules = true;
     };