imagemagick not working on google cloud function

[asad-arthur]

I am using this npm package for image-magick and using google cloud functions framework to be used with my package.

the package that google cloud function are using for image magick as mentioned in their docs https://cloud.google.com/appengine/docs/standard/reference/system-packages?tab=node.js#top, this doesn't work.

I am creating a simple function to download a file and then convert that pdf file to png file using this code

import * as util from "util";
import fs from "fs";

import * as im from "imagemagick";
import * as child_process from "child_process";
import functions from "@google-cloud/functions-framework";
import { CloudProvider } from "./packages/cloud-provider/src/index.js";

const { execFileSync, spawnSync, execSync } = child_process;

const cloud = CloudProvider.getInstance();

functions.http("im-testing", async (req, res) => {
  let val = await cloud.storage.getFile(
    "gcp-setup-testing",
    "asad-testing/pdf-test.pdf"
  );
  const output1 = execSync("ls ./temp").toString();
  console.log("before: ", output1);
  fs.writeFileSync("./temp/pdf-test.pdf", val?.Body);
  if (fs.existsSync("./temp/pdf-test.pdf")) {
    execSync('chmod 755 ./temp/pdf-test.pdf');
  }
  
  let convert = util.promisify(im.convert);
  let convArr = [
    "-density",
    "400",
    "./temp/pdf-test.pdf",
    "-resize",
    "25%",
    "./temp/a.png",
  ];
  await convert(convArr);
  const output2 = execSync("ls ./temp").toString();
  console.log("after: ", output2);
  res.status(200).json({ message: "File converted successfully" });
});

I always get this error Command failed: convert-im6.q16: no images defined ./temp/a.png' @
error/convert.c/ConvertImageCommand/3229.`

I made a docker container using this

FROM node:20.9.0
# Install ImageMagick
RUN apt-get update -y && \
    apt-get install -y imagemagick
WORKDIR /usr/src/app

COPY package*.json ./
RUN npm install
COPY . .
RUN npm run build-ts
CMD ["npm", "run", "start-ts"]

but the max version that container allows for imagemagick is 6.9.11 and that isn't working.
I tried running a simple command for convert that also gave me the same error. Let me know if you need any other log or information on this one but the imagemagick v6.9.11 isn't working anymore on google cloud function