Correct arguments for forEachGeometryAtPixel

The signature for `replayGroup.forEachGeometryAtPixel()` changed with ddc51ee267e66b6ec87098436bb55193d66e64d4, but the map renderer was still [calling it with the old signature](https://github.com/elemoine/ol3/blob/ddc51ee267e66b6ec87098436bb55193d66e64d4/src/ol/renderer/maprenderer.js#L135-L136).  This fixes that.

Fixes #3081.