[R] Followups to 2.0.0 release

[asfimport]

• List optional SystemRequirements
• Restore (and deprecate) properties and arrow_properties arguments to write_parquet because a package depending on arrow happened to use them

Reporter: Neal Richardson / @nealrichardson
Assignee: Neal Richardson / @nealrichardson

PRs and other links:

• GitHub Pull Request #8495

_{Note: This issue was originally created as ARROW-10358. Please see the migration documentation for further details.}

[asfimport]

Neal Richardson / @nealrichardson:
Issue resolved by pull request 8495
#8495