pythonPackages.requirements-detector: fix source

- The fetch expression was referencing another package
  (due to a copy paste error), this commit points that to the
  right repository

pkgs/development/python-modules/requirements-detector/default.nix

@@ -4,6 +4,7 @@
 , lib
 
 # pythonPackages
+, astroid
 , pytest
 }:
 
@@ -13,12 +14,16 @@ buildPythonPackage rec {
   disabled = isPy27;
 
   src = fetchFromGitHub {
-    owner = "yuvadm";
+    owner = "landscapeio";
     repo = pname;
     rev = version;
-    sha256 = "15s0n1lhkz0zwi33waqkkjipal3f7s45rxsj1bw89xpr4dj87qx5";
+    sha256 = "1sfmm7daz0kpdx6pynsvi6qlfhrzxx783l1wb69c8dfzya4xssym";
   };
 
+  propagatedBuildInputs = [
+    astroid
+  ];
+
   checkInputs = [
     pytest
   ];