Manager does not allow to set env vars for instrumentations via CLI flag or env var

[atoulme]

Component(s)

auto-instrumentation

Is your feature request related to a problem? Please describe.

Some of the options available when you set the operator up via instrumentations CRDs are not offered via CLI flag/env var/JSON file. In particular, one cannot set environment variables.

Describe the solution you'd like

Give users the ability to set environment variables via CLI/env var/JSON file.

Describe alternatives you've considered

No response

Additional context

No response