This update for munin fixes the following issues:

- Let munin-node use its own log and run sub-directory
  to avoid privilege escalation (boo#1246089)

- Drop dependency on fast-cgi which was replaced in 2.0.x by munin-httpd
  https://guide.munin-monitoring.org/en/latest/reference/munin-httpd.html

- Add /srv/www directories to filelist [boo#1231027]

- Fix dependenices: the FastCGI perl module is called FCGI.

- remove package name based perl requires

- remove dependency on /usr/bin/python3 using
  %python3_fix_shebang_path macro, [boo#1212476]

- Use %patch -P N instead of deprecated %patchN.

- Provide user(munin) and group(munin): the user and group are
  created during in the pre script.

- Use IO::Socket::IP instead of IO::Socket::INET[6]
  * Remove the dependency on perl(IO::Socket::INET6) as it has been
    deprecated by upstream, is no longer suitable for use and its not
    being maintained. A compatible replacement for this package is
    perl(IO::Socket::IP) which is shipped by the perl-base package.
  * Upstream commit back-ported:
    https://github.com/munin-monitoring/munin/commit/012b33a7
  * Add upstream munin-remove-deprecated-INET6.patch

- Drop manual requires for python (boo#1210588)