Add a script to test fetching PGP keys from a Web Key Directory (WKD).

nix/configuration/roles/gpg/files/gpg_test_wkd.bash

@@ -0,0 +1,8 @@
+#!/usr/bin/env bash
+#
+# Test that we can retrieve a PGP key using Web Key Directory (WKD)
+set -euo pipefail
+IFS=$'\n\t'
+DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
+
+gpg --no-default-keyring --keyring /tmp/gpg-$$ --auto-key-locate clear,wkd --locate-keys "${@}"