Consolidate defaultOptions

[JasonWeinzierl]

Right now default options for each rule is scattered in several places:

• a defaultOptions variable declared at the top of the file
• default values in the meta.schema so that eslint-doc-generator can read the defaults
• when reading the config within the rule's create, we also default each value again e.g. const { allowThrowingAny = true, allowThrowingUnknown = true } = config;

ESLint 9.15 added a new meta.defaultOptions field, which typescript-eslint added support for in 8.15. We should investigate that field and see if it's suitable for consolidating our default options for each rule. We'll need to consider backward compatibility; does defaultOptions work in earlier versions of ESLint? And/or can we raise the minimum required ESLint version?