[C++][CI] Disable S3 in arm64 job on Travis CI

[asfimport]

Reporter: Kouhei Sutou / @kou
Assignee: Kouhei Sutou / @kou

PRs and other links:

• GitHub Pull Request #8372

_{Note: This issue was originally created as ARROW-10201. Please see the migration documentation for further details.}

[asfimport]

Kouhei Sutou / @kou:
Issue resolved by pull request 8372
#8372