refactor: to node action (#47)

Refactoring the action from a composite to Node action. This change improves security through pinning of packages as well as better test-ability and error handling.

Reviewed-on: #47
Co-authored-by: Timo Behrendt <t.behrendt@t00n.de>
Co-committed-by: Timo Behrendt <t.behrendt@t00n.de>

rolldown.config.ts

@@ -0,0 +1,11 @@
+import { defineConfig } from "rolldown";
+
+export default defineConfig({
+  input: "src/index.ts",
+  platform: "node",
+  tsconfig: "./tsconfig.json",
+  output: {
+    file: "dist/index.js",
+    format: "cjs",
+  },
+});