[CI][Dev] Fix shellcheck SC2086 and SC2223 errors in ci/scripts directory

[hiroyuki-sato]

Describe the enhancement requested

This is the sub issue #44748.

SC2086 and SC2223 check require quoting like ${arrow_dir} -> "${arrow_dir}".

In ci/scripts/integration_arrow_build.sh line 25:
: ${ARROW_INTEGRATION_CPP:=ON}
  ^--------------------------^ SC2223 (info): This default assignment may cause DoS due to globbing. Quote it.


In ci/scripts/integration_arrow_build.sh line 29:
. ${arrow_dir}/ci/scripts/util_log.sh
  ^----------^ SC2086 (info): Double quote to prevent globbing and word splitting.

Component(s)

Continuous Integration