Fix: iOS <TextInput multiline/> onChangeText does not fire if only one character

[aroravarun]

Summary:

This change fixes #38105

Changelog:

Pick one each for the category and type tags:

[IOS] [FIXED] - Fix for #38105

Test Plan:

Screen.Recording.2023-07-03.at.23.13.23_compressed.mp4

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[analysis-bot]

Platform	Engine	Arch	Size (bytes)	Diff
android	hermes	arm64-v8a	9,047,498	-953
android	hermes	armeabi-v7a	8,296,921	-945
android	hermes	x86	9,563,792	-954
android	hermes	x86_64	9,405,947	-958
android	jsc	arm64-v8a	9,606,214	-612
android	jsc	armeabi-v7a	8,732,934	-612
android	jsc	x86	9,693,257	-610
android	jsc	x86_64	9,939,542	-615

Base commit: 2910f87
Branch: main

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[efstathiosntonas]

@aroravarun are there any conflicts with this PR? #37958