Took toolkit changes.

dist/restore/index.js

@@ -5519,8 +5519,7 @@ function downloadCacheStorageSDK(archiveLocation, archivePath, options) {
             //
             // If the file exceeds the buffer maximum length (~1 GB on 32-bit systems and ~2 GB
             // on 64-bit systems), split the download into multiple segments
-            // ~2 GB = 2147483647, beyond this, we start getting out of range error. So, capping it accordingly.
-            const maxSegmentSize = Math.min(2147483647, buffer.constants.MAX_LENGTH);
+            const maxSegmentSize = buffer.constants.MAX_LENGTH;
             const downloadProgress = new DownloadProgress(contentLength);
             const fd = fs.openSync(archivePath, 'w');
             try {

dist/save/index.js

@@ -5519,8 +5519,7 @@ function downloadCacheStorageSDK(archiveLocation, archivePath, options) {
             //
             // If the file exceeds the buffer maximum length (~1 GB on 32-bit systems and ~2 GB
             // on 64-bit systems), split the download into multiple segments
-            // ~2 GB = 2147483647, beyond this, we start getting out of range error. So, capping it accordingly.
-            const maxSegmentSize = Math.min(2147483647, buffer.constants.MAX_LENGTH);
+            const maxSegmentSize = buffer.constants.MAX_LENGTH;
             const downloadProgress = new DownloadProgress(contentLength);
             const fd = fs.openSync(archivePath, 'w');
             try {

package.json

@@ -23,7 +23,7 @@
   "author": "GitHub",
   "license": "MIT",
   "dependencies": {
-    "@actions/cache": "file:actions-cache-1.0.10.tgz",
+    "@actions/cache": "file:../toolkit/packages/cache/actions-cache-1.0.10.tgz",
     "@actions/core": "^1.2.6",
     "@actions/exec": "^1.1.1",
     "@actions/io": "^1.1.2"