Fix the tools version in the @main fixture manifest to be 5.4 and not 999.0.  This has already been done on the `release/5.4` branch. (#3203)
Fix the tools version in the @main fixture manifest to be 5.4 and not 999.0.  This has already been done on the `release/5.4` branch. (#3203)


abertelrud/swift-package-manager,apple/swift-package-manager,apple/swift-package-manager,abertelrud/swift-package-manager,abertelrud/swift-package-manager,abertelrud/swift-package-manager,apple/swift-package-manager,apple/swift-package-manager,apple/swift-package-manager,abertelrud/swift-package-manager