Add GitHub issue creation notifications to [email protected]

[jorisvandenbossche]

Now we have issues here, we should probably be consistent and add notifications for new issues to the issues mailing list.

I didn't add the other notification settings, for example I don't think we want commits since we have automated commits here (unless that's only for the master branch?)

[github-actions]

Thanks for opening a pull request!

Could you open an issue for this pull request on JIRA?
https://issues.apache.org/jira/browse/ARROW

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

ARROW-${JIRA_ID}: [${COMPONENT}] ${SUMMARY}

See also:

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

[kou]

Could you also add issues_comment and pullrequests?

Suggested change

	issues_status: [email protected]
	issues_status: [email protected]
	issues_comment: [email protected]
	pullrequests: [email protected]

For commits, we may be able to commits_by_path: https://cwiki.apache.org/confluence/display/INFRA/Git+-+.asf.yaml+features#Git.asf.yamlfeatures-by-pathcommitemails