Update assignees in JIRA where missing

[alamb]

Note: migrated from original JIRA: https://issues.apache.org/jira/browse/ARROW-11031

I have started updating tasks in Jira that were missing assignees.

I see that [~nevi_me]  [~alamb] [~jorgecarleitao] have asked about how to do this in the past so I will briefly explain here.

First you need admin permissions to Jira (I will grant these to you now).

Next you need to add new contributors to the "contributors" role in JIRA. To do this, go to the project setting for Apache Arrow. Select "users and roles" on the left. Click "add user to role" in top right. Then enter the user name and choose the "contributor" role.

After that you can assign issues to that user (and they can self-assign too)

[alamb]

Comment from Jorge Leitão(jorgecarleitao) @ 2020-12-27T11:21:16.019+0000:

Thanks a lot, [~andygrove] .

I updated all issues for the 3.0 release. The search criteria: [https://issues.apache.org/jira/issues/?jql=project%20%3D%20ARROW%20AND%20resolution%20%3D%20Fixed%20AND%20fixVersion%20%3D%203.0.0%20AND%20component%20in%20(Rust%2C%20%22Rust%20-%20DataFusion%22)%20AND%20assignee%20in%20(EMPTY)%20ORDER%20BY%20updated%20DESC%2C%20created%20DESC%2C%20priority%20DESC]

I am still unable to add people as contributors, so there are 2 issues with missing assignee that need to be added as contributors.

Comment from Andy Grove(andygrove) @ 2020-12-28T01:06:30.700+0000:

[~jorgecarleitao] I managed to get distracted immediately after filing this and had not added you as admin but I have now, along with [~alamb] and [~nevi_me]

Comment from Andy Grove(andygrove) @ 2021-01-06T18:21:24.414+0000:

Removed fix version since this does not block the release