nixpkgs: Update submodule:

nh2 · nh2 · commit afa2b62c4723 · 2020-07-30T02:40:17.000+02:00
* include workaround for NixOS/nixpkgs#85924 * musl 1.2.0 (#98 (comment)) * workaround for fontforge execution failure due to wrong RPATH (NixOS/nixpkgs#94126) * ilmbase musl compilation error
diff --git a/nixpkgs b/nixpkgs
@@ -1 +1 @@
-Subproject commit 0c960262d159d3a884dadc3d4e4b131557dad116
+Subproject commit 2ae5cbf0a0bb3ba7b3f74a219a3c382035d3183e
