[CI][C++] Use Google Cloud Storage Testbench v0.55.0 #47047
Description
Describe the enhancement requested
We're using v0.39.0:
arrow/ci/scripts/install_gcs_testbench.sh
Line 39 in 27cca0f
But v0.55.0 is the latest release: https://github.com/googleapis/storage-testbench/releases/tag/v0.55.0
Component(s)
Continuous Integration, C++