Use newer OSG versions where available

Author: matyasselmeci

bin/stashcp2/tests/test_inside_docker.sh

@@ -13,7 +13,13 @@ yum -y clean expire-cache
 rpm -Uvh https://dl.fedoraproject.org/pub/epel/epel-release-latest-${OS_VERSION}.noarch.rpm
 
 yum -y install yum-plugin-priorities
-rpm -Uvh https://repo.opensciencegrid.org/osg/3.3/osg-3.3-el${OS_VERSION}-release-latest.rpm
+case $OS_VERSION in
+    6) OSG_VERSION=3.4
+        ;;
+    7|8) OSG_VERSION=3.5
+        ;;
+esac
+rpm -Uvh https://repo.opensciencegrid.org/osg/${OSG_VERSION}/osg-${OSG_VERSION}-el${OS_VERSION}-release-latest.rpm
 
 yum -y install osg-oasis