Bump dnspython from 1.12.0 to 2.1.0

[dependabot]

Bumps dnspython from 1.12.0 to 2.1.0.

Changelog

Sourced from dnspython's changelog.

2.1.0

• End-of-line comments are now associated with rdata when read from text. For backwards compatibility with prior versions of dnspython, they are only emitted in to_text() when requested.

• Synchronous I/O is a bit more efficient, as we now try the I/O and only use poll() or select() if the I/O would block.

• The resolver cache classes now offer basic hit and miss statistics, and the LRUCache can also provide hits for every cache key.

• The resolver has a canonical_name() method.

• There is now a registration mechanism for EDNS option types.

• The default EDNS payload size has changed from 1280 to 1232.

• The SVCB, HTTPS, and SMIMEA RR types are now supported.

• TSIG has been enhanced with TKEY and GSS-TSIG support. Thanks to Nick Hall for writing this.

• Zones now can be updated via transactions.

• A new zone subclass, dns.versioned.Zone is available which has a thread-safe transaction implementation and support for keeping many versions of a zone.

• The zone file reading code has been adapted to use transactions, and is now a public API.

• Inbound zone transfer support has been rewritten and is available as dns.query.inbound_xfr() and dns.asyncquery.inbound_xfr(). It uses the transaction mechanism, and fully supports IXFR and AXFR.

2.0.0

• Python 3.6 or newer is required.

• The license is now the ISC license.

• Rdata is now immutable. Use dns.rdata.Rdata.replace() to make a new Rdata based on an existing one.

• 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

... (truncated)

Commits

• 3933b49 remove obsolete download URL; add 3.9 classifier
• 51742fb update README for 2.1.0
• 7afdf3e Set 2.1.0 version.
• 88b19b8 Merge pull request #617 from peterthomassen/master
• 1a88653 Pass kw from dns.rdata.to_text to _hexify and _base64ify
• 1b2b550 use methods with appropriate rcode/opcode typecasting in Message.to_text()
• 5103169 Cast flags and ednsflags to int when calling dns.rcode.from_flags() and
• 14bbb9c _WireReader.read() should make flags a dns.flags.Flag [Issue #606]
• 00b5754 Add missing base classes to init.
• 834d645 Merge pull request #616 from timgates42/bugfix_typo_translation
• Additional commits viewable in compare view

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Superseded by #351.