vendor: github.com/containerd/zfs v1.1.0

- update github.com/mistifyio/go-zfs dependency to github.com/mistifyio/go-zfs/v3,
  which contains various bugfixes, and adds go module support (which required a major
  version update): https://github.com/mistifyio/go-zfs/compare/f784269be439...v3.0.1
- remove github.com/pkg/errors dependency
- various minor cleanups/fixes

Full diff: https://github.com/containerd/zfs/compare/v1.0.0...v1.1.0

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>

vendor/github.com/mistifyio/go-zfs/v3/shell.nix

@@ -0,0 +1,26 @@
+let _pkgs = import <nixpkgs> { };
+in { pkgs ? import (_pkgs.fetchFromGitHub {
+  owner = "NixOS";
+  repo = "nixpkgs";
+  #branch@date: 21.11@2022-02-13
+  rev = "560ad8a2f89586ab1a14290f128ad6a393046065";
+  sha256 = "0s0dv1clfpjyzy4p6ywxvzmwx9ddbr2yl77jf1wqdbr0x1206hb8";
+}) { } }:
+
+with pkgs;
+
+mkShell {
+  buildInputs = [
+    git
+    gnumake
+    gnused
+    go
+    nixfmt
+    nodePackages.prettier
+    python3Packages.pip
+    python3Packages.setuptools
+    rufo
+    shfmt
+    vagrant
+  ];
+}