Bump TSDK to v0.21.5 #354

Job	Run time
build-tsdk (build-iphoneos-arm64, iOS-arm64)	4m 38s
build-tsdk (build-iphoneos-arm64, iOS-arm64)	4m 41s
build-tsdk (build-iphoneos-arm64, iOS-arm64)	4m 35s
build-tsdk (build-iphonesimulator-x86_64, iOS-Simulator-x86_64)	6m 41s
build-tsdk (build-iphonesimulator-x86_64, iOS-Simulator-x86_64)	5m 1s
build-tsdk (build-iphonesimulator-x86_64, iOS-Simulator-x86_64)	4m 32s
build-tsdk (build-iphonesimulator-arm64, iOS-Simulator-arm64)	4m 9s
build-tsdk (build-iphonesimulator-arm64, iOS-Simulator-arm64)	4m 34s
build-tsdk (build-iphonesimulator-arm64, iOS-Simulator-arm64)	4m 10s
build-tsdk (build-macosx-arm64, macOS-arm64)	3m 18s
build-tsdk (build-macosx-arm64, macOS-arm64)	4m 51s
build-tsdk (build-macosx-arm64, macOS-arm64)	4m 40s
build-tsdk (build-macosx-x86_64, macOS-x86_64)	4m 43s
build-tsdk (build-macosx-x86_64, macOS-x86_64)	4m 42s
build-tsdk (build-macosx-x86_64, macOS-x86_64)	4m 55s
build-cziti	1m 28s
build-cziti	1m 53s
build-cziti	1m 22s
draft-release	0s
draft-release	0s
draft-release	0s
	1h 14m 53s

Provide feedback