julia: add update script, and 1.5.3 -> 1.5.4 (#116466)

pkgs/development/compilers/julia/1.5.nix

@@ -1,7 +1,6 @@
-{ lib, stdenv, fetchurl, fetchzip, fetchFromGitHub
+{ lib, stdenv, fetchzip
 # build tools
-, gfortran, m4, makeWrapper, patchelf, perl, which, python2
-, cmake
+, gfortran, m4, makeWrapper, patchelf, perl, which, python2, cmake
 # libjulia dependencies
 , libunwind, readline, utf8proc, zlib
 # standard library dependencies
@@ -19,8 +18,8 @@ with lib;
 let
   majorVersion = "1";
   minorVersion = "5";
-  maintenanceVersion = "3";
-  src_sha256 = "sha256:0jds8lrhk4hfdv7dg5p2ibzin9ivga7wrx7zwcmz6dqp3x792n1i";
+  maintenanceVersion = "4";
+  src_sha256 = "1ba1v7hakgj95xvhyff0zcp0574qv6vailjl48wl1f8w5k54lsw2";
   version = "${majorVersion}.${minorVersion}.${maintenanceVersion}";
 in
 
@@ -28,10 +27,10 @@ stdenv.mkDerivation rec {
   pname = "julia";
   inherit version;
 
-   src = fetchzip {
-     url = "https://github.com/JuliaLang/julia/releases/download/v${version}/julia-${version}-full.tar.gz";
-     sha256 = src_sha256;
-   };
+  src = fetchzip {
+    url = "https://github.com/JuliaLang/julia/releases/download/v${version}/julia-${version}-full.tar.gz";
+    sha256 = src_sha256;
+  };
 
   patches = [
     ./use-system-utf8proc-julia-1.3.patch