Merge branch 'update-nixpkgs-2022-03-21' into 'develop'

weekly nixpkgs update (2022-03-21)

See merge request !280

nixpkgs.json

 {
   "name": "source",
-  "url": "https://releases.nixos.org/nixos/21.11/nixos-21.11.336340.2ebb6c1e5ae/nixexprs.tar.xz",
-  "sha256": "1hi47fq801v2bk7ms50sz7a8744zfkkk27kxjpbxzv1n6k0n1w1q"
-}
+  "url": "https://releases.nixos.org/nixos/21.11/nixos-21.11.336589.2c66a7a6e03/nixexprs.tar.xz",
+  "sha256": "1yrgg568blb0syac5w4ca7ml92nggh5fbdbw0r10iglnliljy6m5"
+}
\ No newline at end of file