fix(windows): fix installing non-ascii paths and make `normalizeBuf` generic #11331

Job	Run time
macOS C++ (haswell, x86_64, bun-darwin-x64, bun-obj-darwin-x64, macos-12-large, bun-obj-darwin-x64)	16m 27s
macOS Dependencies (haswell, x86_64, bun-darwin-x64, bun-obj-darwin-x64, macos-12-large, bun-obj-...	3m 40s
macOS Zig Object (haswell, x86_64, bun-obj-darwin-x64)	9m 55s
macOS Link (haswell, x86_64, bun-darwin-x64, bun-obj-darwin-x64, bun-darwin-x64, macos-12-large, ...	8m 41s
Tests bun-darwin-x64	11m 58s
	50m 41s

Provide feedback