Gh-3185: Road traffic demo REST port is not changed by POM property

[GCHQDeveloper314]

Tested locally

Related issue

• Resolve #3185

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 66.72%. Comparing base (7a34d83) to head (1d2dd12).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## develop #3186 +/- ## ============================================= + Coverage 66.71% 66.72% +0.01% - Complexity 2555 2558 +3 ============================================= Files 907 907 Lines 29060 29060 Branches 3243 3243 ============================================= + Hits 19386 19391 +5 + Misses 8238 8236 -2 + Partials 1436 1433 -3 ```

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