adding wrapper to save-only and testcases

src/save-only.ts

@@ -0,0 +1,20 @@
+import * as core from "@actions/core";
+
+import { Inputs } from "./constants";
+import save from "./save";
+import * as utils from "./utils/actionUtils";
+
+async function runSaveAction(): Promise<void> {
+    if (!core.getInput(Inputs.Key)) {
+        utils.logWarning(`Error retrieving key from inputs.`);
+        return;
+    }
+    saveOnly = true;
+
+    await save();
+}
+
+runSaveAction();
+
+export default runSaveAction;
+export let saveOnly: boolean;