Add security_opt to prevent new privileges

[xXxNIKIxXx]

Contribution Guidelines

• I've read the contribution guidelines and wholeheartedly agree them

What does this PR include?

Short Description

Implement OWASP docker rule #4 to each container in the docker-compose.yml

Affected Containers

ALL

Did you run tests?

What did you tested?

Production testing. For more than 6 Months

What were the final results? (Awaited, got)

Containers Running for more than 6 Months without problems.

[patschi]

I'd say it looks and and would be a good idea. Also I have added that setting to my docker-compose.override.yml on my test-deployment using nightly branch. So far, no issues. But I'd like to have more tests/users trying this, to be on the safe side...

Things like sudo or processes trying to evaluate their permissions (netfilter?) might break (expectedly) but we would need to be aware of it.

[stultitiophobia]

I run this config since at least 1 Year without problems, also had some requests, but now he did it right.

I can approve that this config runs like a charm.