Bump to upstream httpd-2.4.6-97.el7.centos.2.x86_64 for CVE's
Upstream needs to be bumped for the following CVE's:
- CVE-2021-34798 httpd: NULL pointer dereference via malformed requests
- CVE-2021-39275 httpd: out-of-bounds write in ap_escape_quotes() via malicious input
- CVE-2021-26691 httpd: Heap overflow in mod_session