Support GPT results file prefix customisation
Adding GPT_RESULTS_PATH_PREFIX
env variable to allow results file path customization.
$ GPT_RESULTS_PATH_PREFIX="staging_test" bin/run-k6 -e staging.json -s -u -o 20s_2rps.json -t web_project_merge_request
...
$ tree results/staging_test
results/staging_test
├── staging_test_results.csv
├── staging_test_results.json
├── staging_test_results.txt
├── staging_test_results_output.log
└── test_results
└── web_project_merge_request.json
Closes #549 (closed)
Edited by Nailia Iskhakova