protobufc: add missed file

+11
+11
pkgs/development/libraries/protobufc/1.3.nix
···
··· 1 + { callPackage, fetchFromGitHub, ... } @ args: 2 + 3 + callPackage ./generic.nix (args // rec { 4 + version = "1.3.0"; 5 + src = fetchFromGitHub { 6 + owner = "protobuf-c"; 7 + repo = "protobuf-c"; 8 + rev = "v${version}"; 9 + sha256 = "0shk18rjhzn2lqrwk97ks3x8gj77isc8szyb3xsgjrbrvkzjgvaa"; 10 + }; 11 + })