chore(deps): bump github.com/docker/buildx from 0.15.1 to 0.21.3 in /samples/instrumentation-quickstart/integrationtest#789

dependabot[bot] wants to merge 1 commit intomainGoogleCloudPlatform/opentelemetry-operations-js:mainfrom

dependabot/go_modules/samples/instrumentation-quickstart/integrationtest/github.com/docker/buildx-0.21.3GoogleCloudPlatform/opentelemetry-operations-js:dependabot/go_modules/samples/instrumentation-quickstart/integrationtest/github.com/docker/buildx-0.21.3Copy head branch name to clipboard