Update coverage to 7.0.3

[pyup-bot]

This PR updates coverage from 7.0.0 to 7.0.3.

Changelog

7.0.3

--------------------------

- Fix: when using pytest-cov or pytest-xdist, or perhaps both, the combining
step could fail with ``assert row is not None`` using 7.0.2.  This was due to
a race condition that has always been possible and is still possible. In
7.0.1 and before, the error was silently swallowed by the combining code.
Now it will produce a message "Couldn't combine data file" and ignore the
data file as it used to do before 7.0.2.  Closes `issue 1522`_.

.. _issue 1522: https://github.com/nedbat/coveragepy/issues/1522


.. _changes_7-0-2:

7.0.2

--------------------------

- Fix: when using the ``[run] relative_files = True`` setting, a relative
``[paths]`` pattern was still being made absolute.  This is now fixed,
closing `issue 1519`_.

- Fix: if Python doesn't provide tomllib, then TOML configuration files can
only be read if coverage.py is installed with the ``[toml]`` extra.
Coverage.py will raise an error if TOML support is not installed when it sees
your settings are in a .toml file. But it didn't understand that
``[tools.coverage]`` was a valid section header, so the error wasn't reported
if you used that header, and settings were silently ignored.  This is now
fixed, closing `issue 1516`_.

- Fix: adjusted how decorators are traced on PyPy 7.3.10, fixing `issue 1515`_.

- Fix: the ``coverage lcov`` report did not properly implement the
``--fail-under=MIN`` option.  This has been fixed.

- Refactor: added many type annotations, including a number of refactorings.
This should not affect outward behavior, but they were a bit invasive in some
places, so keep your eyes peeled for oddities.

- Refactor: removed the vestigial and long untested support for Jython and
IronPython.

.. _issue 1515: https://github.com/nedbat/coveragepy/issues/1515
.. _issue 1516: https://github.com/nedbat/coveragepy/issues/1516
.. _issue 1519: https://github.com/nedbat/coveragepy/issues/1519


.. _changes_7-0-1:

7.0.1

--------------------------

- When checking if a file mapping resolved to a file that exists, we weren't
considering files in .whl files.  This is now fixed, closing `issue 1511`_.

- File pattern rules were too strict, forbidding plus signs and curly braces in
directory and file names.  This is now fixed, closing `issue 1513`_.

- Unusual Unicode or control characters in source files could prevent
reporting.  This is now fixed, closing `issue 1512`_.

- The PyPy wheel now installs on PyPy 3.7, 3.8, and 3.9, closing `issue 1510`_.

.. _issue 1510: https://github.com/nedbat/coveragepy/issues/1510
.. _issue 1511: https://github.com/nedbat/coveragepy/issues/1511
.. _issue 1512: https://github.com/nedbat/coveragepy/issues/1512
.. _issue 1513: https://github.com/nedbat/coveragepy/issues/1513


.. _changes_7-0-0:

Links

• PyPI: https://pypi.org/project/coverage
• Changelog: https://pyup.io/changelogs/coverage/
• Repo: https://github.com/nedbat/coveragepy

[pyup-bot]

Closing this in favor of #413