Draft: Use AtlasExtrapolator in InDetTestPixelLayer config (ATLASRECTS-7966)

Covers cases of extrapolation in calorimeter and avoid usage RungeKutta propagator there, in favour of the step propagator, solving

RAWtoALL 00:26:28 LRTEMBremCollectionBuilder.GSFBu...InDetPropagator    37     3   ERROR Call to non-implemented propagateM