fix(ci): let's try something for epel

Signed-off-by: Raphael Defosseux <raphael.defosseux@openairinterface.org>

build/scripts/build_helper

@@ -299,6 +299,7 @@ check_enable_epel_repos() {
     else
       echo "EPEL repos not present. Installing them."
       wget --tries=4 --retry-connrefused --wait=8 \
+        --user-agent="Mozilla" \
         https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm
       $SUDO $INSTALLER install $OPTION epel-release-latest-7.noarch.rpm
       rm -f epel-release-latest-7.noarch.rpm