Context
missing_code_block_language_in_doc_comment has a bug fix that prevent false positives in dart-lang/sdk@b6ac281. It just so happens that the rest of the lint work is in Dart 3.4 and this fix is in Dart 3.5.

What's wrong
In the PR to add this lint to flutter/packages, flutter/packages#6473, the Linux analyze N-1 tryjob fails because it's currently on 3.4, while N-2 is on 3.3 which doesn't have the lint, and stable is on 3.5 with the correct lint fix. This causes the Linux analyze N-1 tryjob to have false positives.

What needs to be done
PR flutter/packages#6473 will add // ignore:s for each of those false positives and once stable gets updated, we'll clean these up.