HPCC-33185 Fix shell syntax error in build-docker-test.yml workflow#5

Copilot wants to merge 3 commits intoHPCC-33185-Docker-HPCC-Testxwang2713/HPCC-Platform:HPCC-33185-Docker-HPCC-Testfrom

copilot/run-build-docker-test-againxwang2713/HPCC-Platform:copilot/run-build-docker-test-againCopy head branch name to clipboard