Add concurrent transaction tests for DynamoDB adapter with AWS SDK v2 migration and golangci-lint fixes#205

bootjp merged 5 commits intomainbootjp/elastickv:mainfrom

copilot/fix-a86fc1e9-6df6-49b9-8105-d5147dccf62bbootjp/elastickv:copilot/fix-a86fc1e9-6df6-49b9-8105-d5147dccf62bCopy head branch name to clipboard