codespell: Avoid escape sequence that looks like misspelled "nodes"

Source/cmGlobalGhsMultiGenerator.cxx

Source/cmake.cxx

Tests/Module/ExternalData/Data1Check.cmake

Tests/Module/ExternalData/Data2/Data2Check.cmake

Tests/Module/ExternalData/Data3/Data3Check.cmake

Tests/Module/ExternalData/Data4/Data4Check.cmake

Tests/Module/ExternalData/Data5/Data5Check.cmake

...ule/ExternalData/DataNoSymlinks/DataNoSymlinksCheck.cmake

Tests/RunCMake/File_Generate/CMP0070-NEW-check.cmake

Tests/RunCMake/File_Generate/CMP0070-OLD-check.cmake

Tests/RunCMake/File_Generate/CMP0070-WARN-check.cmake

...eneratorToolset/TestToolsetCustomFlagTableDir-check.cmake

Tests/RunCMake/MacOSVersions/MacOSVersions-build-check.cmake

Tests/RunCMake/Ninja/CustomCommandDepfile-check.cmake

Tests/RunCMake/Ninja/CustomCommandJobPool-check.cmake

...unCMake/NinjaMultiConfig/CustomCommandDepfile-check.cmake

Tests/RunCMake/file/COPY_FILE-file-replace.cmake

Tests/RunCMake/file/COPY_FILE-link-to-file.cmake

Tests/RunCMake/file/RENAME-file-replace.cmake