When both rules are selected, any #noqa with unknown/invalid rule codes will be flagged by both RUF100 and RUF102. The RUF100 diagnostic will treat the code as "unknown", while RUF102 will call it "invalid".

We could either:

• drop the "unknown" codes section from RUF100 entirely and leave that for RUF102
• hide the "unknown" codes section of RUF100 iff the RUF102 rule is enabled

I'm in favor of the first, as it simplifies the code and is easier to "explain" IMO.