[stable-2.14] ansible-test - Fix completion error in Python 3.11. (#79500)

(cherry picked from commit 38fe342)

Co-authored-by: Matt Clay <matt@mystile.com>

changelogs/fragments/ansible-test-fix-python-3.11-traceback.yml

@@ -0,0 +1,2 @@
+bugfixes:
+  - ansible-test - Added a work-around for a traceback under Python 3.11 when completing certain command line options.

test/lib/ansible_test/_internal/cli/argparsing/parsers.py

@@ -22,24 +22,26 @@ ASSIGNMENT_DELIMITER = '='
 PATH_DELIMITER = '/'
 
 
-@dataclasses.dataclass(frozen=True)
+# This class was originally frozen. However, that causes issues when running under Python 3.11.
+# See: https://github.com/python/cpython/issues/99856
+@dataclasses.dataclass
 class Completion(Exception):
     """Base class for argument completion results."""
 
 
-@dataclasses.dataclass(frozen=True)
+@dataclasses.dataclass
 class CompletionUnavailable(Completion):
     """Argument completion unavailable."""
     message: str = 'No completions available.'
 
 
-@dataclasses.dataclass(frozen=True)
+@dataclasses.dataclass
 class CompletionError(Completion):
     """Argument completion error."""
     message: t.Optional[str] = None
 
 
-@dataclasses.dataclass(frozen=True)
+@dataclasses.dataclass
 class CompletionSuccess(Completion):
     """Successful argument completion result."""
     list_mode: bool