At the time i didn't realize Moddermore exists, which does the same thing as this script but better, plus it has frontend.
This tool was initially made for personal use, but feel free to modify and use it for yourself.
Implement fuzzy searching instead of searching for exact matches
Adjust mc_version, mod_list, mod_dir and mod_loader variables in the get_mods.py and run the script. Make sure you have Python 3 installed. You will also need to provide CurseForge API key for accessing CurseForge API and e-mail for accessing Modrinth API. You can get the key by registering on https://console.curseforge.com/ and requesting it there. As for the e-mail, you can contact me on Discord.
A couple of mods I use are only available on GitHub, which does provide an API, but you can't filter queries by Minecraft version and mod loader.
I'd still have to manually update the modpack for every version.