Reverted custom asks implemented and added wrapper

src/restoreOnly.ts

@@ -0,0 +1,17 @@
+import * as core from "@actions/core";
+
+import { Outputs } from "./constants";
+import run from "./restoreImpl";
+import * as utils from "./utils/actionUtils";
+
+async function restoreOnly(): Promise<void> {
+    const cacheKey = await run();
+    if (cacheKey) {
+        // Store the matched cache key in output
+        core.setOutput(Outputs.Key, utils.getCacheState());
+
+        core.info(`Cache restored from key: ${cacheKey}`);
+    }
+}
+
+export default restoreOnly;