feat: Add support for flexible checksums on streaming payloads #2965

Job	Run time
apple (macos-13-xlarge, Xcode_14.1, platform=iOS Simulator,OS=16.1,name=iPhone 14)	6m 40s
linux (focal, 5.7)	6m 18s
linux (focal, 5.9)	6m 29s
apple (macos-13-xlarge, Xcode_14.1, platform=tvOS Simulator,OS=16.1,name=Apple TV 4K (3rd generat...	5m 2s
apple (macos-13-xlarge, Xcode_14.1, platform=OS X)	4m 27s
linux (amazonlinux2, 5.7)	6m 8s
apple (macos-14-xlarge, Xcode_15.2, platform=iOS Simulator,OS=17.2,name=iPhone 15)	6m 51s
linux (amazonlinux2, 5.9)	6m 33s
apple (macos-14-xlarge, Xcode_15.2, platform=tvOS Simulator,OS=17.2,name=Apple TV 4K (3rd generat...	4m 45s
apple (macos-14-xlarge, Xcode_15.2, platform=OS X)	4m 31s
	57m 44s

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