[ARROW-14966] [R][CI] Add redundancy to CRAN mirrors for dependency installation

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 7.0.0
• Component/s: Continuous Integration, R
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/30488
• Assignee: Neal Richardson
• Reporter: Neal Richardson
• Created: 02/Dec/21 13:53
• Updated: 11/Jan/23 08:43
• Resolved: 02/Dec/21 16:10

Description

In case RSPM is down, let's be sure to fall back to an actual CRAN mirror.

Issue Links

• links to: GitHub Pull Request #11839