Bump dnspython from 2.2.1 to 2.4.0

[dependabot]

Bumps dnspython from 2.2.1 to 2.4.0.

Changelog

Sourced from dnspython's changelog.

2.4.0 (in development)

• Python 3.8 or newer is required.

• The stub resolver now uses instances of dns.nameserver.Nameserver to represent remote recursive resolvers, and can communicate using DNS over UDP/TCP, HTTPS, TLS, and QUIC. In additional to being able to specify an IPv4, IPv6, or HTTPS URL as a nameserver, instances of dns.nameserver.Nameserver are now permitted.

• The DNS-over-HTTPS bootstrap address no longer causes URL rewriting.

• DNS-over-HTTPS now only uses httpx; support for requests has been dropped. A source port may now be supplied when using httpx.

• DNSSEC zone signing with NSEC records is now supported. Thank you very much (again!) Jakob Schlyter!

• The resolver and async resolver now have the try_ddr() method, which will try to use Discovery of Designated Resolvers (DDR) to upgrade the connection from the stub resolver to the recursive server so that it uses DNS-over-HTTPS, DNS-over-TLS, or DNS-over-QUIC. This feature is currently experimental as the standard is still in draft stage.

• The resolver and async resolver now have the make_resolver_at() and resolve_at() functions, as a convenience for making queries to specific recursive servers.

• Curio support has been removed.

2.3.0

• Python 3.7 or newer is required.

• Type annotations are now integrated with the source code and cover far more of the library.

• The get_soa() method has been added to dns.zone.Zone.

• The minimum TLS version is now 1.2.

• EDNS padding is now supported. Messages with EDNS enabled and with a non-zero pad option will be automatically padded appropriately when converted to wire format.

• dns.zone.from_text() and dns.zone.from_file() now have an allow_directives parameter to allow finer control over how directives in zonefiles are processed.

... (truncated)

Commits

• c475109 2.4.0 versioning
• c4d2608 Do all httpx imports before setting _have_httpx.
• 632ffd2 asyncio close could wait forever #956.
• f4ae209 add some missing DNSSEC RFCs (#955)
• d1a26e3 Fix a number of timeout bugs with QUIC #954.
• eb6c94c Clarify skip test message in test_doq.py (#952)
• 85d8c99 lint
• f2bd497 Test passing ssl_context to tls query functions.
• 0ffcefd Avoid mypy checking woes by always using new enough httpcore.
• ff75996 In async TLS do not ignore a ssl_context given as an argument #951.
• Additional commits viewable in compare view

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[dependabot]

Superseded by #84.