[poppler] Poppler 0.67.0 released

[Albert Astals Cid]

Available from
http://poppler.freedesktop.org/poppler-0.67.0.tar.xz

Release 0.67.0
core:
 * Fix lots of security/leak issues found by oss-fuzz
 * Splash: Optimize some files, making them 20% faster (now for AABGR8)

utils:
 * pdfsig: Compile with libc != glibc. Bug #106783

This release was brought to you by Albert Astals Cid and Stefan Brüns

Testing, patches and bug reports welcome.

P.S: I know there's some/lots of patches waiting for review, i will try to make an effort to get to them for 0.68

Cheers,
  Albert