lib: correct windows-1252 decoding in TextDecoder #1214

Job	Run time
Build slim tarball	1m 35s
aarch64-linux: with shared libraries	25m 24s
x86_64-linux: with shared libraries	30m 8s
aarch64-darwin: with shared libraries	39m 51s
x86_64-darwin: with shared libraries	55m 5s
	2h 32m 3s

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