Bump dnspython from 2.0.0 to 2.2.0 (#1618)

* Bump dnspython from 2.0.0 to 2.2.0

Bumps [dnspython]() from 2.0.0 to 2.2.0.

---
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==2.2.0

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/rdataset.pyi

@@ -0,0 +1,58 @@
+from typing import Optional, Dict, List, Union
+from io import BytesIO
+from . import exception, name, set, rdatatype, rdata, rdataset
+
+class DifferingCovers(exception.DNSException):
+    """An attempt was made to add a DNS SIG/RRSIG whose covered type
+    is not the same as that of the other rdatas in the rdataset."""
+
+
+class IncompatibleTypes(exception.DNSException):
+    """An attempt was made to add DNS RR data of an incompatible type."""
+
+
+class Rdataset(set.Set):
+    def __init__(self, rdclass, rdtype, covers=rdatatype.NONE, ttl=0):
+        self.rdclass : int = rdclass
+        self.rdtype : int = rdtype
+        self.covers : int = covers
+        self.ttl : int = ttl
+
+    def update_ttl(self, ttl : int) -> None:
+        ...
+
+    def add(self, rd : rdata.Rdata, ttl : Optional[int] =None):
+        ...
+
+    def union_update(self, other : Rdataset):
+        ...
+
+    def intersection_update(self, other : Rdataset):
+        ...
+
+    def update(self, other : Rdataset):
+        ...
+
+    def to_text(self, name : Optional[name.Name] =None, origin : Optional[name.Name] =None, relativize=True,
+                override_rdclass : Optional[int] =None, **kw) -> bytes:
+        ...
+
+    def to_wire(self, name : Optional[name.Name], file : BytesIO, compress : Optional[Dict[name.Name, int]] = None, origin : Optional[name.Name] = None,
+                override_rdclass : Optional[int] = None, want_shuffle=True) -> int:
+        ...
+
+    def match(self, rdclass : int, rdtype : int, covers : int) -> bool:
+        ...
+
+
+def from_text_list(rdclass : Union[int,str], rdtype : Union[int,str], ttl : int, text_rdatas : str, idna_codec : Optional[name.IDNACodec] = None) -> rdataset.Rdataset:
+    ...
+
+def from_text(rdclass : Union[int,str], rdtype : Union[int,str], ttl : int, *text_rdatas : str) -> rdataset.Rdataset:
+    ...
+
+def from_rdata_list(ttl : int, rdatas : List[rdata.Rdata]) -> rdataset.Rdataset:
+    ...
+
+def from_rdata(ttl : int, *rdatas : List[rdata.Rdata]) -> rdataset.Rdataset:
+    ...