Add experimental CI for CPython 3.13

[corona10]

• Add CPython 3.13 as the experimental CI
• Upgrade greenlet to 3.0.0-rc3
• Update CPython 3.12 as the non-experimental CI
• Remove Python 3.7 from the CI (EOL)
• Set 3.12 default CPython version for other platforms

[hugovk]

The CI is failing for 3.12 on macOS and Windows, does this need fixing?

Also PyPy3.8 on Ubuntu is failing, but this could be removed because it's no longer supported:

https://www.pypy.org/posts/2023/09/pypy-v7313-release.html

[corona10]

The CI is failing for 3.12 on macOS and Windows, does this need fixing?

Yeah, I am under investigation

[corona10]

Also PyPy3.8 on Ubuntu is failing, but this could be removed because it's no longer supported:

Okay!

[corona10]

Hmm in my local environment macOS
It passed!

.........
----------------------------------------------------------------------
Ran 23 tests in 446.544s

OK (skipped=2, expected failures=1)

[corona10]

@hugovk Let's separate the PR to fix the Windows and macOS GA runner issue.

Windows was already broken from 3.10
#317

[corona10]

We should handle the directory issue on GA but as I commented let's create an issue and solve it separately.

FAIL: test_venv (test_pythoninfo.GetInfoTests.test_venv)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/Users/runner/work/pyperformance/pyperformance/pyperformance/tests/test_pythoninfo.py", line 87, in test_venv
    self.assertEqual(vars(info), vars(expected))
AssertionError: {'sys[21 chars]le='/private/var/folders/24/8k48jl6d249_n_qfxw[1240 chars]r\n'} != {'sys[21 chars]le='/var/folders/24/8k48jl6d249_n_qfxwsl6xvm00[1216 chars]True}
  {'base_executable': '/Library/Frameworks/Python.framework/Versions/3.12/bin/python3.12',
   'executable_realpath': '/Library/Frameworks/Python.framework/Versions/3.12/bin/python3.12',
   'is_venv': True,
   'pyc_magic_number': b'\xcb\r\r\n',
   'stdlib_dir': '/Library/Frameworks/Python.framework/Versions/3.12/lib/python3.12',
-  'sys': namespace(executable='/private/var/folders/24/8k48jl6d249_n_qfxwsl6xvm0000gn/T/tmprglvf6f4/venv/bin/python3',
?                               --------

+  'sys': namespace(executable='/var/folders/24/8k48jl6d249_n_qfxwsl6xvm0000gn/T/tmprglvf6f4/venv/bin/python3',
-                   prefix='/private/var/folders/24/8k48jl6d249_n_qfxwsl6xvm0000gn/T/tmprglvf6f4/venv',
-                   exec_prefix='/private/var/folders/24/8k48jl6d249_n_qfxwsl6xvm0000gn/T/tmprglvf6f4/venv',
-                   _stdlib_dir='/Library/Frameworks/Python.framework/Versions/3.12/lib/python3.12',
                    _base_executable='/Library/Frameworks/Python.framework/Versions/3.12/bin/python3.12',
-                   base_prefix='/Library/Frameworks/Python.framework/Versions/3.12',
-                   base_exec_prefix='/Library/Frameworks/Python.framework/Versions/3.12',
                    version='3.12.0 (v3.12.0:0fb18b02c8, Oct  2 2023, 09:45:56) '
                            '[Clang 13.0.0 (clang-1300.0.29.30)]',
                    version_info=(3, 12, 0, 'final', 0),
                    hexversion=51118320,
                    api_version=1013,
                    implementation=namespace(name='cpython',
                                             version=(3, 12, 0, 'final', 0)),
-                   platform='darwin'),
?                                    -

+                   platform='darwin',
+                   prefix='/var/folders/24/8k48jl6d249_n_qfxwsl6xvm0000gn/T/tmprglvf6f4/venv',
+                   exec_prefix='/var/folders/24/8k48jl6d249_n_qfxwsl6xvm0000gn/T/tmprglvf6f4/venv',
+                   base_prefix='/Library/Frameworks/Python.framework/Versions/3.12',
+                   base_exec_prefix='/Library/Frameworks/Python.framework/Versions/3.12',
+                   _stdlib_dir='/Library/Frameworks/Python.framework/Versions/3.12/lib/python3.12'),
   'sysconfig': namespace(paths=namespace(stdlib='/Library/Frameworks/Python.framework/Versions/3.12/lib/python3.12'),
                          is_python_build=False)}

[corona10]

In macOS, /var is a symlink to /private/var.

[corona10]

Yeah, it's looks complex issue than I expected, let's solve it separately cc @hugovk