New OpenStreetMap Carto release, v5.4.0

[pnorman]

A new version of OpenStreetMap Carto, v5.4.0, has been released.

The one deployment related change is the creation of a new index, planet_osm_line_label, which should be created before updating.

This index can be created concurrently with

CREATE INDEX CONCURRENTLY IF NOT EXISTS planet_osm_line_label
  ON planet_osm_line USING GIST (way)
  WHERE name IS NOT NULL OR ref IS NOT NULL;

[tomhughes]

Deployed in 365e89c.