Fix windows warning/error over unsigned int

[TatianaKapos]

Summary

react-native-windows treats compiler c++ warning as errors, this is one of them. It fixes it by assigning i to unsigned instead of auto.

Changelog

[Internal] [Changed] - Fix react-native-windows compiler warning in AttributedString

Test Plan

code is already merged into react-native-windows and passing all tests. The for loop changed is also used directly above in AttributedString::compareTextAttributesWithoutFrame

[facebook-github-bot]

@NickGerleman has imported this pull request. If you are a Meta employee, you can view this diff on Phabricator.

[cipolleschi]

Hi @TatianaKapos, thanks for opening this. Can I ask you to log into https://app.circleci.com and then to rebase the PR on main? This should restart the OSS Pipeline which failed due to some problem with the OAuth token.

[analysis-bot]

Platform	Engine	Arch	Size (bytes)	Diff
android	hermes	arm64-v8a	7,755,804	+9
android	hermes	armeabi-v7a	7,159,876	-8
android	hermes	x86	8,067,410	+7
android	hermes	x86_64	8,038,084	-42
android	jsc	arm64-v8a	9,614,020	+24
android	jsc	armeabi-v7a	8,379,963	-8
android	jsc	x86	9,560,826	+6
android	jsc	x86_64	10,153,749	-38

Base commit: 9e68eea2c872fa0cef30303f31a2bce996997e88 Branch: main

[facebook-github-bot]

@NickGerleman has imported this pull request. If you are a Meta employee, you can view this diff on Phabricator.

[analysis-bot]

Platform	Engine	Arch	Size (bytes)	Diff
ios	-	universal	n/a	--

Base commit: 9e68eea2c872fa0cef30303f31a2bce996997e88 Branch: main

[pull-bot]

PR build artifact for f117fc2986c5ad272f4a1ad4c1a5fc7b98c9e80c is ready. To use, download tarball from "Artifacts" tab in this CircleCI job then run yarn add <path to tarball> in your React Native project.

[react-native-bot]

This pull request was successfully merged by @TatianaKapos in 950ea915bee6b3b30107c04bd34990fb390c7268.

^{When will my fix make it into a release? | Upcoming Releases}