Fix "Fix unchanged revision hashes when watching"

The previous fix didn't care about Windows environment.

lib/compile.js

@@ -1,4 +1,4 @@
-const path = require("path");
+const { posix: path } = require("path");
 const url = require("url");
 
 const sass = require("sass");
@@ -10,13 +10,13 @@ const getLoadPathsFixedSassOptions = require("./get-load-paths-fixed-sass-option
 const debugDev = require("debug")("Dev:EleventySass:Compile");
 
 const compile = async function(inputContent, inputPath, sassOptions, config, postcss) {
-  let parsed = path.posix.parse(inputPath);
+  let parsed = path.parse(inputPath);
   if (parsed.name.startsWith("_")) {
     debugDev(`Actually, didn't compile ${ inputPath }, because the filename starts with "_"`);
     return;
   }
 
-  let inputURL = url.pathToFileURL(path.posix.resolve(inputPath)).href;
+  let inputURL = url.pathToFileURL(path.resolve(inputPath)).href;
 
   let stringOptions = getLoadPathsFixedSassOptions(sassOptions, parsed.dir, config);
   stringOptions.url = inputURL;