Add seed parameter to cudf hash_character_ngrams

[davidwendt]

Description

The seed parameter was added to nvtext::hash_character_ngrams in #17643 but was not added to the Python interface. This PR adds the parameter to the pylibcudf function and Python interface methods.

Checklist

• I am familiar with the Contributing Guidelines.
• New or existing tests cover these changes.
• The documentation is up to date with these changes.

[mroeschke]

One minor comment otherwise LGTM

[Matt711]

/merge

[davidwendt]

I could use some help with the failures here.
It appears the pylibcudf pytest is running without the code changes for this PR.
https://github.com/rapidsai/cudf/actions/runs/13317529148/job/37197516084?pr=17994#step:9:9218
I mentions line 84 of generate_ngrams.pyx which has been updated and is now line 86: https://github.com/rapidsai/cudf/pull/17994/files#diff-3a8b3c8197dbbf4a83d6fa5f9bb36c95a6c74dec1ef180b69cb1415c1cf3fc8bL84
Line 84 no longer exists.

[Matt711]

I could use some help with the failures here. It appears the pylibcudf pytest is running without the code changes for this PR. https://github.com/rapidsai/cudf/actions/runs/13317529148/job/37197516084?pr=17994#step:9:9218 I mentions line 84 of generate_ngrams.pyx which has been updated and is now line 86: https://github.com/rapidsai/cudf/pull/17994/files#diff-3a8b3c8197dbbf4a83d6fa5f9bb36c95a6c74dec1ef180b69cb1415c1cf3fc8bL84 Line 84 no longer exists.

Looking at the logs. Its using the nightly version of cudf. I'm not sure why though.

[mroeschke]

I could use some help with the failures here. It appears the pylibcudf pytest is running without the code changes for this PR. https://github.com/rapidsai/cudf/actions/runs/13317529148/job/37197516084?pr=17994#step:9:9218 I mentions line 84 of generate_ngrams.pyx which has been updated and is now line 86: https://github.com/rapidsai/cudf/pull/17994/files#diff-3a8b3c8197dbbf4a83d6fa5f9bb36c95a6c74dec1ef180b69cb1415c1cf3fc8bL84 Line 84 no longer exists.

Looking at the logs. Its using the nightly version of cudf. I'm not sure why though.

As posted offline, I suspect #17995 somehow changed the behavior of libcudf/pylibcudf/cudf not being installed from source