CMakeParseImplicitIncludeInfo: Remove all CR chars from compiler output

Brad Kingrequested to merge
brad.king/cmake:implicit-includes-extra-CR into master

With Clang/LLVM on MinGW, lines ending in \r\r\n have been observed. Filter out all \r characters from these line endings.

Fixes: #20021 (closed)
Backport: release

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