[FEA] Make regular expression behavior with $ and \r consistent with CPU

[andygrove]

Is your feature request related to a problem? Please describe.
Since rapidsai/cudf#9715 was merged, cuDF is consistent with Python, where the '$' EOL regex pattern character (without MULTILINE set) should match at the very end of a string and also just before the end of the string if the end of that string contains a new-line.

Java has similar behavior but considers \r to be a new-line character in this context, where cuDF and Python do not.

This means that a pattern such as a$ would match both a\n or a\r with Spark on CPU, but would only match a\n on the GPU.

Describe the solution you'd like
I would like the behavior to be consistent.

We either need additional support in cuDF to emulate Java behavior here, or we need to have our own version of the regex kernels, or perhaps we can find some workaround in the plugin but I don't have any ideas yet for how to do this in a simple and low-risk way.

Describe alternatives you've considered
None

Additional context
None.