win32 not available when using webpack 5 and path-browserify polyfill

[jsarman]

json-schema-ref-parser/lib/util/convert-path-to-posix.ts

Line 10 in 26d824b

return filePath.split(path.win32.sep).join(path.posix.sep);

win32 is not supported withe the path-browserify polyfill. This currently causes a null failure.
Cannot read properties of null (reading 'sep')
at convertPathToPosix (convert-path-to-posix.js:12:1)

[jonluca]

Fixed in v11.2.2