Bump third_party/ot-br-posix/repo from `bd15f71` to `23149c3` #102669

Job	Run time
Build framework (macos-release, -sdk macosx -configuration Release)	16m 22s
Build framework (macos-release, -sdk macosx -configuration Release)	16m 22s
Build framework (ios-release, -sdk iphoneos -configuration Release)	9m 1s
Build framework (ios-release, -sdk iphoneos -configuration Release)	9m 1s
Build framework (tvos-debug, -sdk appletvos -configuration Debug)	9m 16s
Build framework (tvos-debug, -sdk appletvos -configuration Debug)	9m 16s
Build framework (watchos-debug, -sdk watchos -configuration Debug)	18m 59s
Build framework (watchos-debug, -sdk watchos -configuration Debug)	18m 59s
Run framework tests (asan, -enableAddressSanitizer YES -enableUndefinedBehaviorSanitizer YES)	36m 25s
Run framework tests (asan, -enableAddressSanitizer YES -enableUndefinedBehaviorSanitizer YES)	36m 25s
Run framework tests (tsan, -enableThreadSanitizer YES)	40m 26s
Run framework tests (tsan, -enableThreadSanitizer YES)	40m 26s
Run framework tests (leaks, ENABLE_LEAK_DETECTION=1)	42m 18s
Run framework tests (leaks, ENABLE_LEAK_DETECTION=1)	32m 46s
	5h 36m 2s

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