We already allow this lint in scannerlib and have decided not to address
this (for now) when it came up in scannerlib, since it would require
substantial changes to the error handling.

Allow clippy lint in openvasd.

Remove all `dbg!` calls

In preparation for the notus migration to skiron, this adds a config
to use an external API to get notus results.

In order for Notus to be available in NASL it must be available in the Scan Context.
To be future prove the psosibility to either use the internal Notus implementation,
as well as using an external API was already added.

This includes:
- security_notus
- notus_error
- notus
- notus_type

As we do not need these items intenrally, they are removed again

There was a missmatch, when using a hostname instead of an IP address as a target. The kb items were written to the IP address, where as they were read using the original target string.

replace the global RUN atomic and background signal task with inline
signal handling using tokio::select!. the accept loop now concurrently
awaits incoming connections and OS signals, ensuring the server exits
immediately on SIGTERM/SIGINT/SIGQUIT instead of blocking until a new
connection arrives. this removes the need for shared mutable state and
makes shutdown behavior deterministic and responsive.

* Add: handle large ipv6 networks

With this patch, the host discovery for large ipv6 networks is introduced together with a new alive test method (int 32).
Instead of creating a host list from an IPv6 network address and mask (e.g. 5858::0/64), which would take years to scan and it woudl consume all the RAM, it just call a new function in gvm-libs to perform an ICMPv6 to a multicast IPv6 address (ff02::1).
Later, the found host are set as target and they will be handle as before. To avoid a double alive test, they are just considered alive.

For now, it only supports only one IPv6 network address. This means it can not be combined with other networks or unicast addresses.

Also, it is required that the local network has ICMPv6 enabled, otherwise the discovery won't work.

* add the new alive method

* remove checks for alive methods

* Add: host discovery for large ipv6 networks for scannerctl rust implementation

To test this, try with the following command

sudo target/debug/scannerctl alivetest --hostdiscovery -t 5858:0:0:0:0:0:1:0/124 -v

Ensure you added the IP and network to your local host and ensure there are other alive hosts in the same network. You can try with subnets as well