open parameter "errors" should be error handler, not encoding (Issue #226)

[timohencken]

see issue open parameter "errors" should be error handler, not encoding #226

Hi,

I stumbled upon a bug in stdout decoding when running your lib against an SQL Server configured to German and returning "öß".

At following point of code, an error handling method needs to be specified, not an encoding:

bcpandas/bcpandas/utils.py

Line 272 in 8889280

errors="utf-8",

    proc = Popen(
        cmd,
        stdout=PIPE,
        stderr=STDOUT,
        encoding="utf-8",
-       errors="utf-8",
+       errors="replace",
        shell=with_shell,
    )

see https://docs.python.org/3/library/io.html#io.TextIOWrapper for reference