fix: allow Bedrock provider to use AWS SDK default credential chain#3708

majiayu000 wants to merge 4 commits intosimstudioai:mainsimstudioai/sim:mainfrom

majiayu000:fix/issue-3694-bedrock-default-credential-chainmajiayu000/sim:fix/issue-3694-bedrock-default-credential-chainCopy head branch name to clipboard