Reverts to the old marketplace in VSCodium

fix_codium.py

import json

file_path = "/usr/share/vscodium-bin/resources/app/product.json"

with open(file_path, "r") as f:
    config = json.load(f)
    config["extensionsGallery"]["serviceUrl"] = "https://marketplace.visualstudio.com/_apis/public/gallery"
    config["extensionsGallery"]["cacheUrl"] = "https://vscode.blob.core.windows.net/gallery/index"
    config["extensionsGallery"]["itemUrl"] = "https://marketplace.visualstudio.com/items"

with open(file_path, "w") as f:
    json.dump(config, f, indent=2)