package/gstreamer1: bump version to 1.18.0

package/gstreamer1: bump version to 1.18.0

- change home page url to https

- remove 0001-meson-build-gir-even-when-cross-compiling-if-introspection.patch
  (upstream [1])

- meson options: add extra-checks=disabled, gst_parse=true, doc=disabled
  (and re-order tools and gobjec-cast-checks according to meson_options.txt order)

[1] https://gitlab.freedesktop.org/gstreamer/gstreamer/-/commit/35db4a2433fbdf8612cf98b5aab5b14aeb5372f8.patch

Signed-off-by: Peter Seiderer <ps.report@gmx.net>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>