[3.11] gh-109474: Update two Unix packaging URLs (GH-109307) (#109478)

gh-109474: Update two Unix packaging URLs  (GH-109307)

update packaging URLs

fix a broken URL for fedora RPM packaging guide and fix a URL redirect for Slackware packaging guide.
(cherry picked from commit 0b38ce440bd76b3d25b6d042ee9613841fb4a947)

Co-authored-by: partev <petrosyan@gmail.com>