feat: add built-in caching via inputs (#89)

(cherry picked from commit fd6b0ad149)

dist/cache-ByPW8-iO.mjs

@@ -0,0 +1,4 @@
+import "./semver-DmxAwBYV.mjs";
+import { restoreCache, saveCache } from "./cache-DzONlZ-I.mjs";
+
+export { restoreCache };

dist/post.mjs

@@ -0,0 +1,16 @@
+import { import_core } from "./semver-DmxAwBYV.mjs";
+import { saveCache } from "./cache-DzONlZ-I.mjs";
+import process from "node:process";
+
+//#region src/post.ts
+async function main() {
+	try {
+		await saveCache();
+	} catch (err) {
+		import_core.setFailed(err instanceof Error ? err : String(err));
+		process.exit();
+	}
+}
+main();
+
+//#endregion