updated image conversion part

heicToPng.js

@@ -0,0 +1,12 @@
+const { promisify } = require("util");
+const fs = require("fs");
+const convert = require("heic-convert");
+
+module.exports = async function heicToPng(input, output) {
+  const inputBuffer = await promisify(fs.readFile)(input);
+  const outputBuffer = await convert({
+    buffer: inputBuffer,
+    format: "PNG",
+  });
+  await promisify(fs.writeFile)(output, outputBuffer);
+};