librsvg: Bump to 2.52.0 -> 2.52.2

Drop backports which are already in this release
Bunch of bugfixes and features

Details of changes

https://gitlab.gnome.org/GNOME/librsvg/-/releases#2.52.2
https://gitlab.gnome.org/GNOME/librsvg/-/releases#2.52.1



Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>