Fix some Clang-tidy warnings in simplexml #19220

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10 warnings

pkg-config 0.29.2_3 is already installed and up-to-date. To reinstall 0.29.2_3, run: brew reinstall pkg-config

Formula postgresql was renamed to postgresql@14.

openssl@1.1 1.1.1w is already installed and up-to-date. To reinstall 1.1.1w, run: brew reinstall openssl@1.1

curl 8.8.0 is already installed and up-to-date. To reinstall 8.8.0, run: brew reinstall curl

libpng 1.6.43 is already installed and up-to-date. To reinstall 1.6.43, run: brew reinstall libpng

freetype 2.13.2 is already installed and up-to-date. To reinstall 2.13.2, run: brew reinstall freetype

icu4c 74.2 is already installed and up-to-date. To reinstall 74.2, run: brew reinstall icu4c

gmp 6.3.0 is already installed and up-to-date. To reinstall 6.3.0, run: brew reinstall gmp

libsodium 1.0.20 is already installed and up-to-date. To reinstall 1.0.20, run: brew reinstall libsodium

Already linked: /opt/homebrew/Cellar/gettext/0.22.5