go: 1.10.2 -> 1.10.3

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

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

These checks were done:

- built on NixOS
- Warning: no invocation of /nix/store/sz746n0jm0n8dnv47d7cqvwny8ncfbi4-go-1.10.3/bin/gofmt had a zero exit code or showed the expected version
- /nix/store/sz746n0jm0n8dnv47d7cqvwny8ncfbi4-go-1.10.3/bin/.go-wrapped passed the binary check.
- /nix/store/sz746n0jm0n8dnv47d7cqvwny8ncfbi4-go-1.10.3/bin/go passed the binary check.
- 2 of 3 passed binary check by having a zero exit code.
- 0 of 3 passed binary check by having the new version present in output.
- found 1.10.3 with grep in /nix/store/sz746n0jm0n8dnv47d7cqvwny8ncfbi4-go-1.10.3
- directory tree listing: https://gist.github.com/499abd38cfb9318ba6bbcd885951c6b8
- du listing: https://gist.github.com/04fbe15eac23c814fa6b313c8e543e4c

pkgs/development/compilers/go/1.10.nix

@@ -25,13 +25,13 @@ in
 
 stdenv.mkDerivation rec {
   name = "go-${version}";
-  version = "1.10.2";
+  version = "1.10.3";
 
   src = fetchFromGitHub {
     owner = "golang";
     repo = "go";
     rev = "go${version}";
-    sha256 = "1lbxnlj5l9i8k1dg33dh8ndx9vspk9dkpcbg06jbbswy6kadmx6f";
+    sha256 = "0i89298dgnmpmam3ifkm0ax266vvbq1yz7wfw8wwrcma0szrbrnb";
   };
 
   # perl is used for testing go vet