ES|QL ST_EXTENT_AGG does not handle when rectangle touches dateline

[craigtaverner]

Two tests in ShapeGeometryFieldMapperTests are disabled due to this bug:

• ignoreTestGeoBoundsBlockLoader
• ignoreTestRectangleCrossingDateline

The issue is related to the fact that when we index data with the GeoShapeIndexer the visit(Rectangle) method explicitly deals with dateline crossing, and in particular rectangles that touch the dateline. The aggregation code, on the other hand, does not do this, leading to differences. See SpatialEnvelopeVisitor.GeoPointVisitor.visitRectangle(...).

This bug applies to all releases that support the ST_EXTENT_AGG function, which is everything since 8.18.0.

[elasticsearchmachine]

Pinging @elastic/es-analytical-engine (Team:Analytics)