Remove openbao helper and replace it with more general program

This gets rid of the messy nix code for handling bitwarden
secrets, and unifies it all into a nice single program
in rust. Ensuring that only the needed secrets are loaded.

.forgejo/workflows/push.yaml

@@ -18,8 +18,9 @@ jobs:
     steps:
       - uses: actions/checkout@v4
       - run: |
+          nix build --no-link '.#packages.x86_64-linux.ed25519-helper'
           nix build --no-link '.#packages.x86_64-linux.hetzner-static-ip'
-          nix build --no-link '.#packages.x86_64-linux.openbao-helper'
+          nix build --no-link '.#packages.x86_64-linux.infrastructure'
   terraform-providers:
     runs-on: cache.kaareskovgaard.net
     steps: