mkdocstring-python-xref changes

Note that versions roughly correspond to the version of mkdocstrings-python that they are compatible with.

1.16.2

• Improved source locations for errors in docstrings now including column numbers (starting at 1).

1.16.1

• Fix sdist distributions (should enable conda-forge to build)

1.16.0

• Compatibility with mkdocstrings-python 1.16.*
• Removed some deprecated imports from mkdocstrings

1.14.1

• Restrict to mkdocstrings-python <1.16 (see bug #32)

1.14.0

• Work with mkdocstrings-python 1.14 or later
• Drop python 3.8 support
• Fix extra files in wheel's RECORD

1.6.2

• Use griffe 1.0 or later

1.6.1

• Available on conda-forge

1.6.0

• Added explicit option to disable cross-reference checking.
• When enabled, check all cross-references, not just relative ones
• If reference begins with '?', don't check cross-reference.

1.5.3

First public release