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/exception.py

@@ -21,6 +21,10 @@ Dnspython modules may also define their own exceptions, which will
 always be subclasses of ``DNSException``.
 """
 
+
+from typing import Optional, Set
+
+
 class DNSException(Exception):
     """Abstract base class shared by all dnspython exceptions.
 
@@ -44,14 +48,15 @@ class DNSException(Exception):
     and ``fmt`` class variables to get nice parametrized messages.
     """
 
-    msg = None  # non-parametrized message
-    supp_kwargs = set()  # accepted parameters for _fmt_kwargs (sanity check)
-    fmt = None  # message parametrized with results from _fmt_kwargs
+    msg: Optional[str] = None  # non-parametrized message
+    supp_kwargs: Set[str] = set()  # accepted parameters for _fmt_kwargs (sanity check)
+    fmt: Optional[str] = None  # message parametrized with results from _fmt_kwargs
 
     def __init__(self, *args, **kwargs):
         self._check_params(*args, **kwargs)
         if kwargs:
-            self.kwargs = self._check_kwargs(**kwargs)
+            # This call to a virtual method from __init__ is ok in our usage
+            self.kwargs = self._check_kwargs(**kwargs)  # lgtm[py/init-calls-subclass]
             self.msg = str(self)
         else:
             self.kwargs = dict()  # defined but empty for old mode exceptions
@@ -68,14 +73,15 @@ class DNSException(Exception):
 
         For sanity we do not allow to mix old and new behavior."""
         if args or kwargs:
-            assert bool(args) != bool(kwargs), \
-                'keyword arguments are mutually exclusive with positional args'
+            assert bool(args) != bool(
+                kwargs
+            ), "keyword arguments are mutually exclusive with positional args"
 
     def _check_kwargs(self, **kwargs):
         if kwargs:
-            assert set(kwargs.keys()) == self.supp_kwargs, \
-                'following set of keyword args is required: %s' % (
-                    self.supp_kwargs)
+            assert (
+                set(kwargs.keys()) == self.supp_kwargs
+            ), "following set of keyword args is required: %s" % (self.supp_kwargs)
         return kwargs
 
     def _fmt_kwargs(self, **kwargs):
@@ -124,9 +130,15 @@ class TooBig(DNSException):
 
 class Timeout(DNSException):
     """The DNS operation timed out."""
-    supp_kwargs = {'timeout'}
+
+    supp_kwargs = {"timeout"}
     fmt = "The DNS operation timed out after {timeout:.3f} seconds"
 
+    # We do this as otherwise mypy complains about unexpected keyword argument
+    # idna_exception
+    def __init__(self, *args, **kwargs):
+        super().__init__(*args, **kwargs)
+
 
 class ExceptionWrapper:
     def __init__(self, exception_class):
@@ -136,7 +148,6 @@ class ExceptionWrapper:
         return self
 
     def __exit__(self, exc_type, exc_val, exc_tb):
-        if exc_type is not None and not isinstance(exc_val,
-                                                   self.exception_class):
+        if exc_type is not None and not isinstance(exc_val, self.exception_class):
             raise self.exception_class(str(exc_val)) from exc_val
         return False