Troubleshooting guide for vault secrets

What does this MR do and why?

Document a troubleshooting guide for an error when retrieving secrets coming from a customer ticket (internal only).

I was able to replicate the error message with an incorrect vault value configured by removing the password key following this example.

Incorrect Syntax	Correct Syntax
vault: production/db@ops	vault: production/db/password@ops

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Before	After

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