Changes in libsoup from 2.66.2 to 2.67.1: * Add a brotli decoder. This adds a new dependency on libbrotli [Patrick Griffis] * Add strict secure cookies support [Patrick Griffis] * Add HSTS enforcer SoupSession feature (with both memory and sqlite backends) [Adrien Plazas, Claudio Saavedra] * meson gtk-doc documentation fixes [Claudio Saavedra] * Bump the CI test image to Fedora 30 and add libbrotli dependency [Claudio Saavedra]