vets-api helm chart - move socat proxy into parent helm chart

[patrick-black-oddball]

the socat proxy runs in all environments - so push to parent helm chart

• note - a few values vary by environment - set these up to be settable via values.yaml override

Tasks

• [ ] Add socat proxy to parent helm chart
• [ ] remove socat proxy from dev helm chart
• [ ] remove socat proxy from staging helm chart
• [ ] remove socat proxy from prod helm chart
• [ ] remove socat proxy from sandbox helm chart

Acceptance Criteria

• [ ] socat proxy running in all environments from the parent helm chart