azure-cli: fix hash

f7b8a5d7f636c37f0a46ac2c5ca69a342bfccc90 changed the upstream version to "hash"
that lead to "multiple hashes passed to fetchurl" for this override

pkgs/tools/admin/azure-cli/python-packages.nix

···
 
         src = oldAttrs.src.override {
           inherit version;
-          sha256 = "sha256-YninUGU5VBgoP4h958O+r7OqaNraXKy+SyFOjSbaSZs=";
+          hash = "sha256-YninUGU5VBgoP4h958O+r7OqaNraXKy+SyFOjSbaSZs=";
         };
       });