package/libraw: bump version to 0.19.5
Release notes: https://www.libraw.org/news/libraw-0-19-5-release
Updated hash of README.md after upstream commit:
https://github.com/LibRaw/LibRaw/commit/292c2763c93352f606fb1d7ab3ab57b6de883903
Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>