PathName2URLTests fail with Python 3.12.9

[ptrcnull]

some changes between Python 3.12.2 and 3.12.9 cause the following tests to fail on Alpine Linux edge with python-future 1.0.0:

____________ URL2PathNameTests.test_converting_when_no_drive_letter ____________

self = <test_future.test_urllib.URL2PathNameTests testMethod=test_converting_when_no_drive_letter>

    def test_converting_when_no_drive_letter(self):
        # cannot end a raw string in \
>       self.assertEqual(url2pathname("///C/test/"), r'\\\C\test' '\\')
E       AssertionError: '\\C\\test\\' != '\\\\\\C\\test\\'
E       - \C\test\
E       + \\\C\test\
E       ? ++

tests/test_future/test_urllib.py:1339: AssertionError
________________ URL2PathNameTests.test_roundtrip_url2pathname _________________

self = <test_future.test_urllib.URL2PathNameTests testMethod=test_roundtrip_url2pathname>

    def test_roundtrip_url2pathname(self):
        list_of_paths = ['C:',
                         r'\\\C\test\\',
                         r'C:\foo\bar\spam.foo'
                         ]
        for path in list_of_paths:
>           self.assertEqual(url2pathname(pathname2url(path)), path)
E           AssertionError: '\\C\\test\\\\' != '\\\\\\C\\test\\\\'
E           - \C\test\\
E           + \\\C\test\\
E           ? ++

tests/test_future/test_urllib.py:1355: AssertionError
________________ PathName2URLTests.test_converting_drive_letter ________________

self = <test_future.test_urllib.PathName2URLTests testMethod=test_converting_drive_letter>

    def test_converting_drive_letter(self):
        self.assertEqual(pathname2url("C:"), '///C:')
>       self.assertEqual(pathname2url("C:\\"), '///C:')
E       AssertionError: '///C:/' != '///C:'
E       - ///C:/
E       ?      -
E       + ///C:

tests/test_future/test_urllib.py:1361: AssertionError
____________ PathName2URLTests.test_converting_when_no_drive_letter ____________

self = <test_future.test_urllib.PathName2URLTests testMethod=test_converting_when_no_drive_letter>

    def test_converting_when_no_drive_letter(self):
>       self.assertEqual(pathname2url(r"\\\folder\test" "\\"),
                         '/////folder/test/')
E       AssertionError: '///folder/test/' != '/////folder/test/'
E       - ///folder/test/
E       + /////folder/test/
E       ? ++

tests/test_future/test_urllib.py:1364: AssertionError
________________ PathName2URLTests.test_roundtrip_pathname2url _________________

self = <test_future.test_urllib.PathName2URLTests testMethod=test_roundtrip_pathname2url>

    def test_roundtrip_pathname2url(self):
        list_of_paths = ['///C:',
                         '/////folder/test/',
                         '///C:/foo/bar/spam.foo']
        for path in list_of_paths:
>           self.assertEqual(pathname2url(url2pathname(path)), path)
E           AssertionError: '//folder/test/' != '/////folder/test/'
E           - //folder/test/
E           + /////folder/test/
E           ? +++

tests/test_future/test_urllib.py:1383: AssertionError
____________ URL2PathNameTests.test_converting_when_no_drive_letter ____________

self = <test_future.test_urllib_toplevel.URL2PathNameTests testMethod=test_converting_when_no_drive_letter>

    def test_converting_when_no_drive_letter(self):
        # cannot end a raw string in \
>       self.assertEqual(url2pathname("///C/test/"), r'\\\C\test' '\\')
E       AssertionError: '\\C\\test\\' != '\\\\\\C\\test\\'
E       - \C\test\
E       + \\\C\test\
E       ? ++

tests/test_future/test_urllib_toplevel.py:1357: AssertionError
________________ URL2PathNameTests.test_roundtrip_url2pathname _________________

self = <test_future.test_urllib_toplevel.URL2PathNameTests testMethod=test_roundtrip_url2pathname>

    def test_roundtrip_url2pathname(self):
        list_of_paths = ['C:',
                         r'\\\C\test\\',
                         r'C:\foo\bar\spam.foo'
                         ]
        for path in list_of_paths:
>           self.assertEqual(url2pathname(pathname2url(path)), path)
E           AssertionError: '\\C\\test\\\\' != '\\\\\\C\\test\\\\'
E           - \C\test\\
E           + \\\C\test\\
E           ? ++

tests/test_future/test_urllib_toplevel.py:1373: AssertionError
________________ PathName2URLTests.test_converting_drive_letter ________________

self = <test_future.test_urllib_toplevel.PathName2URLTests testMethod=test_converting_drive_letter>

    def test_converting_drive_letter(self):
        self.assertEqual(pathname2url("C:"), '///C:')
>       self.assertEqual(pathname2url("C:\\"), '///C:')
E       AssertionError: '///C:/' != '///C:'
E       - ///C:/
E       ?      -
E       + ///C:

tests/test_future/test_urllib_toplevel.py:1379: AssertionError
____________ PathName2URLTests.test_converting_when_no_drive_letter ____________

self = <test_future.test_urllib_toplevel.PathName2URLTests testMethod=test_converting_when_no_drive_letter>

    def test_converting_when_no_drive_letter(self):
>       self.assertEqual(pathname2url(r"\\\folder\test" "\\"),
                         '/////folder/test/')
E       AssertionError: '///folder/test/' != '/////folder/test/'
E       - ///folder/test/
E       + /////folder/test/
E       ? ++

tests/test_future/test_urllib_toplevel.py:1382: AssertionError
________________ PathName2URLTests.test_roundtrip_pathname2url _________________

self = <test_future.test_urllib_toplevel.PathName2URLTests testMethod=test_roundtrip_pathname2url>

    def test_roundtrip_pathname2url(self):
        list_of_paths = ['///C:',
                         '/////folder/test/',
                         '///C:/foo/bar/spam.foo']
        for path in list_of_paths:
>           self.assertEqual(pathname2url(url2pathname(path)), path)
E           AssertionError: '//folder/test/' != '/////folder/test/'
E           - //folder/test/
E           + /////folder/test/
E           ? +++

tests/test_future/test_urllib_toplevel.py:1401: AssertionError

[ptrcnull]

seems to be caused by this change: python/cpython#127217