Add target endpoint to `CommissioningWindowOpener` (#34425) #947

Job	Run time
Build framework (macos-release, -sdk macosx -configuration Release)	13m 55s
Build framework (ios-release, -sdk iphoneos -configuration Release)	9m 18s
Build framework (tvos-debug, -sdk appletvos -configuration Debug)	7m 35s
Build framework (watchos-debug, -sdk watchos -configuration Debug)	17m 31s
Run framework tests (asan, -enableAddressSanitizer YES -enableUndefinedBehaviorSanitizer YES)	28m 34s
Run framework tests (tsan, -enableThreadSanitizer YES)	24m 38s
Run framework tests (leaks, ENABLE_LEAK_DETECTION=1)	30m 56s
	2h 12m 27s

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