feat(secrets)!: Replace sops with agenix-rekey

sops-nix is tending to be fairly complex for our use-cases, which adds
difficulty to deploying, maintaining our wrapper module, keeping
".env.bin" files, etc.

agenix-rekey is a lot simpler.

notable in this commit is the `// { outputPath = ...; }` hack in
flake.nix. This is needed due to snowfall-lib otherwise butchering paths
such that agenix-rekey is unable to show us what secrets exist with
`agenix edit`, etc... companion to that is the lib.snowfall.fs stuff in
the secrets/default.nix file

Change-Id: Id3e79cfc7d37a7b7de7b8cc42f7392c4d8bd07c5
Reviewed-on: https://git.clicks.codes/c/Infra/NixFiles/+/801
Reviewed-by: Skyler Grey <minion@clicks.codes>
Tested-by: Skyler Grey <minion@clicks.codes>
diff --git a/secrets/rekeyed/teal/035988d5aa30b83dbdb77a1c7546d45b-clicks.services.headscale.private_key_path.age b/secrets/rekeyed/teal/035988d5aa30b83dbdb77a1c7546d45b-clicks.services.headscale.private_key_path.age
new file mode 100644
index 0000000..a50c96a
--- /dev/null
+++ b/secrets/rekeyed/teal/035988d5aa30b83dbdb77a1c7546d45b-clicks.services.headscale.private_key_path.age
@@ -0,0 +1,9 @@
+age-encryption.org/v1
+-> ssh-ed25519 BfRbTA PxPtfASwbluRZaarn28rBJId3YuASEjV+7NC4KcXkUA
+vRy+qGCBKcs8QvlPRalY7SGKNLM/9ePMMM9Teoc1qXE
+-> !-grease Ib, "%_
+bQhUIOKRzSZIr1vX9lFkXNa0PuvEjOCzXOfIda/AjZ8heizSWbNNzP9HIR1ApGwn
+hJpRlYlSab4tkHnJZEOMdDNpOeTR7MQ7hLg
+--- ToA9JamqQKKy+94TIdE8tl+aOnjm/X3dlSB9Ftii0GA
+½ÍASQÿº:MŽÆ†wëÿÜ¢e|À°v?¯è®ÄÃh-}üDKD„©ÆïóWÃtz-¼UE Æ@.E.˜/lá–0<.„«n:F<$å·ÙX•_ÿG¦Æ½
+#T⇔H½ö4
\ No newline at end of file