bug(devShell): throws an error about nomad secret

[steveej]

I can't enter a dev shell and there's no docs to tell me how to fix that:

> nix develop
++ REPO_SECRETS_DIR=/home/thetasinner/.holochain-infra-secrets
++ mkdir -p /home/thetasinner/.holochain-infra-secrets
++ chmod 700 /home/thetasinner/.holochain-infra-secrets
++ export NOMAD_CLIENT_KEY=/home/thetasinner/.holochain-infra-secrets/global-cli-nomad-key
++ NOMAD_CLIENT_KEY=/home/thetasinner/.holochain-infra-secrets/global-cli-nomad-key
++ sops -d secrets/nomad/cli/keys.yaml
++ yq .global-cli-nomad-key
Failed to get the data key required to decrypt the SOPS file.

Group 0: FAILED
  6F7069FE6B96E894E60EC45C6EEFA706CB17E89B: FAILED
    - | could not decrypt data key with PGP key:
      | github.com/ProtonMail/go-crypto/openpgp error: could not
      | load secring: open /home/thetasinner/.gnupg/pubring.gpg: no
      | such file or directory; GnuPG binary error: failed to
      | decrypt sops data key with pgp: gpg: encrypted with RSA key,
      | ID 44871BFCC5DF6DBB
      | gpg: decryption failed: No secret key
  
  age1ygzy9clj0xavlmau0ham7j5nw8yy4z0q8hvkfpdgwc4fcr8nufpqrdxgvx: FAILED
    - | failed to load age identities: failed to open file: open
      | /home/thetasinner/.config/sops/age/keys.txt: no such file or
      | directory
  
  age194xfar0gfdauu2dcxwqk9lh9d0vjfrzzs2ke0ppanpwv9eqxzs2qp7q7cn: FAILED
    - | failed to load age identities: failed to open file: open
      | /home/thetasinner/.config/sops/age/keys.txt: no such file or
      | directory

Recovery failed because no master key was able to decrypt the file. In
order for SOPS to recover the file, at least one key has to be successful,
but none were.
+ command rm -f /tmp/nix-shell.j9KGXu

Originally posted by @ThetaSinner in #86 (comment)