package/pcre: bump version to 8.42
Updated license hash after upstream commit
https://vcs.pcre.org/pcre/code/tags/pcre-8.42/LICENCE?r1=1674&r2=1726
Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>