fix!: remove deprecated `SourceCode` methods #3785

Job	Run time
Types (neostandard)	55s
Are the types wrong? (eslint, .)	53s
Types (eslint-visitor-keys)	1m 5s
Types (eslint-flat-config-utils)	1m 22s
Types (@eslint/json)	1m 5s
Are the types wrong? (eslint-config-eslint, packages/eslint-config-eslint)	19s
Types (eslint-webpack-plugin)	-1s
	5m 38s

Provide feedback