Remove package-lock.json requirement for Cloudflare Workers build cache

[jmooring]

Currently, enabling the Cloudflare Workers build cache requires the presence of a package-lock.json file (or an equivalent Node lockfile) in the project root.

For projects that do not rely on Node.js packages—such as certain static site generators like Hugo—this requirement introduces unnecessary friction. Developers are forced to implement awkward workarounds in their build scripts, like running npm init -y && npm install, solely to trick the system into enabling the caching mechanism.

The presence of a Node-based lockfile should not be a strict requirement for the build cache to function. The build cache should natively support non-Node projects, allowing them to utilize the caching feature without needing to generate dummy package.json or package-lock.json files.