Pin pyodbc to latest version 4.0.16

[pyup-bot]

pyodbc is not pinned to a specific version.

I'm pinning it to the latest version 4.0.16 for now.

These links might come in handy: PyPI | Changelog | Repo

Changelog

4.0.0

Unicode handling rewritten for correctness. See the Handling Unicode
documentation for details.

3.0.10

Binary distributions for OS X and Windows are now uploaded
to PyPI and can now be installed using pip. Source
distributions are also uploaded and can be used by other platforms to compile. (PyPI only
allows binary uploads for OS X and Windows.)

Moved the project from Google Code hosting to GitHub. (Google is closing its open source
hosting.)

Fixed potential load failure.

Fixed decimal and int issues on 64-bit linux.

3.0.7

Added context manager support to Cursor

Added padding for driver bugs writing an extra byte

Cursor.executemany now accepts an iterator or generator.

Compilation improvements for FreeBSD, Cygwin, and OS/X

Use SQL_DATA_AT_EXEC instead of SQL_DATA_LEN_AT_EXEC when possible for driver compatibility.

Row objects can now be pickled.

3.0.6

Added Cursor.commit() and Cursor.rollback(). It is now possible to use only a cursor in your
code instead of keeping track of a connection and a cursor.

Added readonly keyword to connect. If set to True, SQLSetConnectAttr SQL_ATTR_ACCESS_MODE is
set to SQL_MODE_READ_ONLY. This may provide better locking semantics or speed for some drivers.

Fixed an error reading SQL Server XML data types longer than 4K.

3.0.5

Fixed "function sequence" errors caused by prepared SQL not being cleared ("unprepared") when a
catalog function is executed.

3.0.4

Fixed building on Python 2.5. Other versions are not affected.

3.0.3

Update to build using gcc 4.6.2: A compiler warning was changed to an error
in 4.6.2.

3.0.2

This is the first official pyodbc release that supports both Python 2 and Python 3 (3.2+).
Merry Christmas!

Many updates were made for this version, particularly around Unicode support. If you have
outstanding issues from the 2.1.x line, please retest with this version.

If you are on Linux and connecting to SQL Server, you may also be interested
in Microsoft's Linux ODBC driver.
Check your bitness - a Google search may be required ;)

Got merge conflicts? Close this PR and delete the branch. I'll create a new PR for you.

Happy merging! 🤖