Bump dnspython from 2.2.1 to 2.3.0 (#1975)

* Bump dnspython from 2.2.1 to 2.3.0

Bumps [dnspython](https://github.com/rthalley/dnspython) from 2.2.1 to 2.3.0.
- [Release notes](https://github.com/rthalley/dnspython/releases)
- [Changelog](https://github.com/rthalley/dnspython/blob/master/doc/whatsnew.rst)
- [Commits](https://github.com/rthalley/dnspython/compare/v2.2.1...v2.3.0)

---
updated-dependencies:
- dependency-name: dnspython
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

* Update dnspython==2.3.0

---------

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: JonnyWong16 <9099342+JonnyWong16@users.noreply.github.com>

[skip ci]

lib/dns/quic/__init__.py

@@ -0,0 +1,74 @@
+# Copyright (C) Dnspython Contributors, see LICENSE for text of ISC license
+
+try:
+    import aioquic.quic.configuration  # type: ignore
+
+    import dns.asyncbackend
+    from dns._asyncbackend import NullContext
+    from dns.quic._sync import SyncQuicManager, SyncQuicConnection, SyncQuicStream
+    from dns.quic._asyncio import (
+        AsyncioQuicManager,
+        AsyncioQuicConnection,
+        AsyncioQuicStream,
+    )
+    from dns.quic._common import AsyncQuicConnection, AsyncQuicManager
+
+    have_quic = True
+
+    def null_factory(
+        *args,  # pylint: disable=unused-argument
+        **kwargs  # pylint: disable=unused-argument
+    ):
+        return NullContext(None)
+
+    def _asyncio_manager_factory(
+        context, *args, **kwargs  # pylint: disable=unused-argument
+    ):
+        return AsyncioQuicManager(*args, **kwargs)
+
+    # We have a context factory and a manager factory as for trio we need to have
+    # a nursery.
+
+    _async_factories = {"asyncio": (null_factory, _asyncio_manager_factory)}
+
+    try:
+        import trio
+        from dns.quic._trio import (  # pylint: disable=ungrouped-imports
+            TrioQuicManager,
+            TrioQuicConnection,
+            TrioQuicStream,
+        )
+
+        def _trio_context_factory():
+            return trio.open_nursery()
+
+        def _trio_manager_factory(context, *args, **kwargs):
+            return TrioQuicManager(context, *args, **kwargs)
+
+        _async_factories["trio"] = (_trio_context_factory, _trio_manager_factory)
+    except ImportError:
+        pass
+
+    def factories_for_backend(backend=None):
+        if backend is None:
+            backend = dns.asyncbackend.get_default_backend()
+        return _async_factories[backend.name()]
+
+except ImportError:
+    have_quic = False
+
+    from typing import Any
+
+    class AsyncQuicStream:  # type: ignore
+        pass
+
+    class AsyncQuicConnection:  # type: ignore
+        async def make_stream(self) -> Any:
+            raise NotImplementedError
+
+    class SyncQuicStream:  # type: ignore
+        pass
+
+    class SyncQuicConnection:  # type: ignore
+        def make_stream(self) -> Any:
+            raise NotImplementedError