packaging: rpm_ci: use curl -L to download rawhide logs
packaging: rpm_ci: use curl -L to download rawhide logs

Fedora Rawhide version is now referenced by release number in Copr
(Fedora 26 ATM).  So the url 'fedora-rawhide-x86_64' is now
redirected to 'fedora-26-x86_64' (and as it is floating target,
later it will be redirected to 'fedora-27-x86_64').

Use 'curl -L' to follow this http redirect.

pgjdbc/pgjdbc,marschall/pgjdbc,AlexElin/pgjdbc,jamesthomp/pgjdbc,whitingjr/pgjdbc,marschall/pgjdbc,davecramer/pgjdbc,jkutner/pgjdbc,zapov/pgjdbc,lordnelson/pgjdbc,golovnin/pgjdbc,golovnin/pgjdbc,sehrope/pgjdbc,davecramer/pgjdbc,jamesthomp/pgjdbc,whitingjr/pgjdbc,zemian/pgjdbc,pgjdbc/pgjdbc,AlexElin/pgjdbc,jorsol/pgjdbc,panchenko/pgjdbc,jorsol/pgjdbc,sehrope/pgjdbc,AlexElin/pgjdbc,lordnelson/pgjdbc,panchenko/pgjdbc,golovnin/pgjdbc,sehrope/pgjdbc,pgjdbc/pgjdbc,davecramer/pgjdbc,whitingjr/pgjdbc,zapov/pgjdbc,davecramer/pgjdbc,marschall/pgjdbc,pgjdbc/pgjdbc,jorsol/pgjdbc,zemian/pgjdbc,marschall/pgjdbc,zemian/pgjdbc,zapov/pgjdbc,sehrope/pgjdbc,jkutner/pgjdbc,lordnelson/pgjdbc,panchenko/pgjdbc,jorsol/pgjdbc,jkutner/pgjdbc,jamesthomp/pgjdbc