libpcre: upgraded package to upstream

Upgraded dev-libs/libpcre to version 8.44 on amd64

BUG=b/159516396,b/159979416
TEST=presubmit (sponge2/eae7c7aa-fedf-493e-9de8-6be64c9b6d79)

Change-Id: I9c3d102152c584ae223d113d4151838dc42253e1
5 files changed