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/flags.py

@@ -17,10 +17,13 @@
 
 """DNS Message Flags."""
 
+from typing import Any
+
 import enum
 
 # Standard DNS flags
 
+
 class Flag(enum.IntFlag):
     #: Query Response
     QR = 0x8000
@@ -40,12 +43,13 @@ class Flag(enum.IntFlag):
 
 # EDNS flags
 
+
 class EDNSFlag(enum.IntFlag):
     #: DNSSEC answer OK
     DO = 0x8000
 
 
-def _from_text(text, enum_class):
+def _from_text(text: str, enum_class: Any) -> int:
     flags = 0
     tokens = text.split()
     for t in tokens:
@@ -53,15 +57,15 @@ def _from_text(text, enum_class):
     return flags
 
 
-def _to_text(flags, enum_class):
+def _to_text(flags: int, enum_class: Any) -> str:
     text_flags = []
     for k, v in enum_class.__members__.items():
         if flags & v != 0:
             text_flags.append(k)
-    return ' '.join(text_flags)
+    return " ".join(text_flags)
 
 
-def from_text(text):
+def from_text(text: str) -> int:
     """Convert a space-separated list of flag text values into a flags
     value.
 
@@ -71,7 +75,7 @@ def from_text(text):
     return _from_text(text, Flag)
 
 
-def to_text(flags):
+def to_text(flags: int) -> str:
     """Convert a flags value into a space-separated list of flag text
     values.
 
@@ -81,7 +85,7 @@ def to_text(flags):
     return _to_text(flags, Flag)
 
 
-def edns_from_text(text):
+def edns_from_text(text: str) -> int:
     """Convert a space-separated list of EDNS flag text values into a EDNS
     flags value.
 
@@ -91,7 +95,7 @@ def edns_from_text(text):
     return _from_text(text, EDNSFlag)
 
 
-def edns_to_text(flags):
+def edns_to_text(flags: int) -> str:
     """Convert an EDNS flags value into a space-separated list of EDNS flag
     text values.
 
@@ -100,6 +104,7 @@ def edns_to_text(flags):
 
     return _to_text(flags, EDNSFlag)
 
+
 ### BEGIN generated Flag constants
 
 QR = Flag.QR