nixpkgs: Update submodule to include workaround for NixOS/nixpkgs#85924

nh2 · nh2 · commit 3a0521e5a898 · 2020-07-28T00:33:03.000+02:00
diff --git a/nixpkgs b/nixpkgs
@@ -1 +1 @@
-Subproject commit 0c960262d159d3a884dadc3d4e4b131557dad116
+Subproject commit d7f663fdf4ca183fe48ff2dba06d03e9c19530ed
