chore: bump @aws-sdk/karma-credential-loader from 3.13.0 to 3.21.0#647

dependabot[bot] wants to merge 1 commit intomasteraws/aws-encryption-sdk-javascript:masterfrom

dependabot/npm_and_yarn/aws-sdk/karma-credential-loader-3.21.0aws/aws-encryption-sdk-javascript:dependabot/npm_and_yarn/aws-sdk/karma-credential-loader-3.21.0Copy head branch name to clipboard