package/apache: security bump version to 2.4.48

Changelog: https://downloads.apache.org/httpd/CHANGES_2.4.48



Fixes CVE-2021-31618:
mod_http2: Fix a potential NULL pointer dereference [Ivan Zhakov]

Removed patch 0004 which is included in upstream release.

Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>