[FR]: Support for specific versions with allowBuilds and onlyBuiltDependencies

### What is the current behavior?

As of pnpm 10.19, you can specify versions on dependencies in `onlyBuiltDependencies`: https://pnpm.io/blog/releases/10.19#versions-in-onlybuiltdependencies But as far as I can tell, we are not set up to handle this yet.

### Describe the feature

It would be good to add support for this for both `onlyBuiltDependencies` and [allowBuilds](https://pnpm.io/settings#allowbuilds) so that we can handle this situation correctly.

Start by reading the pnpm 10.19 release note on versions in onlyBuiltDependencies and the allowBuilds settings documentation linked in the issue. Trace how rules_js currently interprets both dependency lists, then identify the relevant tests or entry points for their existing behavior. Done means version-specific entries work correctly in both settings.

Written by the indexing model from the issue text.