Fix dev-notifications certificates

[dcadenas]

See https://planetary-app.slack.com/archives/C056EQP6JK1/p1729088659817509?thread_ts=1729034972.642699&cid=C056EQP6JK1

Our notifications ansible setup only has prod password and cert. We need to add the dev pwd and cert and move files to the proper locations. Currently there's this structure:

inventories/notifications_service/group_vars/
├── all
│   ├── certificate_apns.p12
│   └── vault.yml
├── dev
│   ├── vault.yml
│   └── vault_firestore-credentials.json
└── prod
    ├── vault.yml
    ├── vault_firestore-credentials.json
    └── vault_pubsub-credentials.json

The p12 file should be under each env and a specific password for each env vault