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ARROW-5061: [Release] Improve 03-binary performance

  * Use jq in local
  * Ensure making variables for "for" function local for parallel processing

Author: Kouhei Sutou <kou@clear-code.com>

Closes #4070 from kou/release-improve-binary-upload-performance and squashes the following commits:

2463d3c7 <Kouhei Sutou>  Improve 03-binary performance