Support for msgfmt==0.25

[Mohammad Ali Mehdizadeh]

When I run tests on my machine with msgfmt==0.25, one test failed:

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FAIL: test_msgfmt_error_including_non_ascii (i18n.test_compilation.CompilationErrorHandling.test_msgfmt_error_including_non_ascii)
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Traceback (most recent call last):
  File "/home/mam/.pyenv/versions/3.12.5/lib/python3.12/unittest/case.py", line 58, in testPartExecutor
    yield
  File "/home/mam/.pyenv/versions/3.12.5/lib/python3.12/unittest/case.py", line 634, in run
    self._callTestMethod(testMethod)
    ^^^^^^^^^^^^^^^^^
  File "/home/mam/.pyenv/versions/3.12.5/lib/python3.12/unittest/case.py", line 589, in _callTestMethod
    if method() is not None:
    ^^^^^^^^^^^^^^^^^
  File "/home/mam/mycode/django/tests/i18n/test_compilation.py", line 281, in test_msgfmt_error_including_non_ascii
    self.assertIn("' cannot start a field name", stderr.getvalue())
    ^^^^^^^^^^^^^^^^^
  File "/home/mam/.pyenv/versions/3.12.5/lib/python3.12/unittest/case.py", line 1152, in assertIn
    self.fail(self._formatMessage(msg, standardMsg))
    ^^^^^^^^^^^^^^^^^
  File "/home/mam/.pyenv/versions/3.12.5/lib/python3.12/unittest/case.py", line 715, in fail
    raise self.failureException(msg)
    ^^^^^^^^^^^^^^^^^
AssertionError: "' cannot start a field name" not found in "Execution of msgfmt failed: /tmp/django_6kqdkmj8/i18n_i8h9ij4r/commands/locale/ko/LC_MESSAGES/django.po:24: 'msgstr' is not a valid Python brace format string, unlike 'msgid'. Reason: In the directive number 0, a field name starts with a character that is not alphanumerical or underscore.\nmsgfmt: found 1 fatal error\n"

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Ran 17523 tests in 155.582s

FAILED (failures=1, skipped=1597, expected failures=5)