Using deprecated method of dnspython

[sebix]

Changelog of version 2.0.0:

dns.resolver.resolve() has been added, allowing control of whether search lists are used. dns.resolver.query() is retained for backwards compatibility, but deprecated. The default for search list behavior can be set at in the resolver object with the use_search_by_default parameter. The default is False.

dns.resolver.query() is used here:

https://github.com/certtools/intelmq/blob/651d0733f719579e96ec4b063a260023ebeadc50/intelmq/lib/harmonization.py#L705=

https://github.com/certtools/intelmq/blob/0c6b3269ac480e47c62c9c31ff8685ba90d91f55/intelmq/bots/experts/abusix/_lib.py#L29= https://github.com/certtools/intelmq/blob/3bbf1201ad783664985f00be4ba7a44ce5b05e8d/intelmq/bots/experts/reverse_dns/expert.py#L70= https://github.com/certtools/intelmq/blob/0c6b3269ac480e47c62c9c31ff8685ba90d91f55/intelmq/bots/experts/cymru_whois/_lib.py#L57=

We also need backwards compatibility with dnspython < 2 (e.g. Ubuntu 20.04), so we could add a DNS-Query functon in utils with a if version < 2 then ... else ... switch.