Rule parsing is broken in prod

https://googlefonts.github.io/tagger/ shows in red,

```
Warnings
Rule could not be parsed: not tag_covers_100_percent()
Rule could not be parsed: any(tag_value > 100 for tag_value in tag.values())
Rule could not be parsed: )
Rule could not be parsed: tag["/Expressive/Active"] > 0 and not font["OS/2"]["fsSelection"] & 0x1
```