New redis config

[tuto193]

What:

redis-openvas.conf has been updated and brought to the newest standards, since some settings were either not present at all, or worded wrongly.
Why:
Update

How:
As stated in the git log history:

1. While comparing this ridis.conf against redis-openvas.conf Settings which were missing (actually missing and not commented out in the redis-openvas.conf) were first added.
2. The rewording of some settings (actually just renaming from slave to replica was done.
3. Check at this step, which of the settings that are active in both differ:

Following settings commented out on the redis.conf 5.0
---------------------
Setting         Value(s)
--------------  ---------------------------------
unixsocket      ['/run/redis-openvas/redis.sock']
unixsocketperm  ['770']
syslog-enabled  ['yes']
maxclients      ['10000']

The follwing settings differ in both config files
Setting    redis.conf                   redis-openvas.conf
---------  ---------------------------  ---------------------------------------
port       ['6379']                     ['0']
daemonize  ['no']                       ['yes']
pidfile    ['/var/run/redis_6379.pid']  ['/run/redis-openvas/redis-server.pid']
databases  ['16']                       ['1025']

4. Replaced the redis-openvas.conf with the redis.conf text.
5. Changed/added the settings from 3. so original behavior is not affected.

Checklist:

• Tests
• CHANGELOG Entry

[jjnicola]

Thanks @tuto193 for updating this file.