feat: adapt object storage to new regional api#1343

bahkauv70 merged 5 commits intomainstackitcloud/stackit-sdk-go:mainfrom

feat/stackittpr-20-Region-adjustments-|-TFP-(migrate-first-service-to-new-regions-conceptstackitcloud/stackit-sdk-go:feat/stackittpr-20-Region-adjustments-|-TFP-(migrate-first-service-to-new-regions-conceptCopy head branch name to clipboard