Update GTMSessionUploadFetcher.h #272

Job	Run time
swift (debug)	2m 26s
xcodebuild (ios, Debug)	8m 21s
swift (release)	2m 23s
xcodebuild (ios, Release)	8m 30s
xcodebuild (macos, Debug)	2m 49s
xcodebuild (macos, Release)	2m 47s
xcodebuild (tvos, Debug)	3m 6s
xcodebuild (tvos, Release)	3m 30s
xcodebuild (visionos, Debug)	5m 25s
xcodebuild (visionos, Release)	6m 13s
xcodebuild (watchos, Debug)	1m 45s
xcodebuild (watchos, Release)	1m 30s
	48m 45s

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