fix: use require.resolve when referencing cache-loader (#1585)

Author: arcanis

Diff for: lib/loaders/pitcher.js

@@ -128,7 +128,7 @@ module.exports.pitch = function (remainingRequest) {
   if (query.type === `template`) {
     const path = require('path')
     const cacheLoader = cacheDirectory && cacheIdentifier
-      ? [`cache-loader?${JSON.stringify({
+      ? [`${require.resolve('cache-loader')}?${JSON.stringify({
         // For some reason, webpack fails to generate consistent hash if we
         // use absolute paths here, even though the path is only used in a
         // comment. For now we have to ensure cacheDirectory is a relative path.