arrow

ARROW-16669: [Go][CI] Test failure on ARM for pqarrow (#13628)

By shrinking the size of the test cases used for the `pqarrow` module's row tests from `10 * 1024 * 1024` to just `1024 * 1024`  this should keep the RSS needs for the ARM build with the `-race` tag down low enough to avoid intermittent failures in the Travis CI builds.

CC @guyuqi 

Authored-by: Matthew Topol <zotthewizard@gmail.com>
Signed-off-by: Yibo Cai <yibo.cai@arm.com>