[Config] fix 5528 let ArrayNode::normalizeValue respect order of value array provided

| Q             | A
| ------------- | ---
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | #5528
| License       | MIT
| Doc PR        | maybe a note @WouterJ ?