PDFBOX-1587: Update the dependency on Bouncy Castle to 1.48
PDFBOX-1587: Update the dependency on Bouncy Castle to 1.48

git-svn-id: c3ad59981690829a43dc34c293c4e2cd04bcd994@1477825 13f79535-47bb-0310-9956-ffa450edef68

apache/pdfbox,kalaspuffar/pdfbox,apache/pdfbox,kalaspuffar/pdfbox