MINOR: [R][Documentation] Add default descriptions in CsvParseOptions$create() docs

[angela-li]

Rationale for this change

Add more function documentation for folks who want to manually change quote_char or escape_char options in CsvParseOptions$create(), as I did in #37908.

I had to go through the source code to arrow/r/R/csv.R - line 587 to find the default argument, which was a pain.

What changes are included in this PR?

Documentation changes

Are these changes tested?

No - not changing underlying code. Maintainers might need to rebuild package to include these changes in man/ folder

Are there any user-facing changes?

Yes, on documentation of methods.

[github-actions]

Thanks for opening a pull request!

If this is not a minor PR. Could you open an issue for this pull request on GitHub? https://github.com/apache/arrow/issues/new/choose

Opening GitHub issues ahead of time contributes to the Openness of the Apache Arrow project.

Then could you also rename the pull request title in the following format?

GH-${GITHUB_ISSUE_ID}: [${COMPONENT}] ${SUMMARY}

or

MINOR: [${COMPONENT}] ${SUMMARY}

In the case of PARQUET issues on JIRA the title also supports:

PARQUET-${JIRA_ISSUE_ID}: [${COMPONENT}] ${SUMMARY}

See also:

• Other pull requests
• Contribution Guidelines - How to contribute patches

[github-actions]

⚠️ GitHub issue #37908 has been automatically assigned in GitHub to PR creator.

[thisisnic]

Thanks for making this PR, @angela-li! I've rebuilt the docs and pushed it to the branch, so will merge shortly.

[conbench-apache-arrow]

After merging your PR, Conbench analyzed the 6 benchmarking runs that have been run so far on merge-commit 1bd3cba.

There were no benchmark performance regressions. 🎉

The full Conbench report has more details. It also includes information about possible false positives for unstable benchmarks that are known to sometimes produce them.