Update base tag for main to swift-DEVELOPMENT-SNAPSHOT-2025-09-21-a#657

swiftwasm-bot merged 1 commit intomainswiftwasm/swiftwasm-build:mainfrom

update-base-tag/main-swift-DEVELOPMENT-SNAPSHOT-2025-09-21-aswiftwasm/swiftwasm-build:update-base-tag/main-swift-DEVELOPMENT-SNAPSHOT-2025-09-21-aCopy head branch name to clipboard