Incorrect reporting location for `no-missing-placeholders`, `no-unused-placeholders`

[bmish]

For some reason, I'm seeing these rules incorrectly report violations inside meta.messages instead of in the context.report() call in these two examples:

1. https://github.com/typescript-eslint/typescript-eslint/blob/ff93e6a839f7c34ed8c3b1740a20d37e0e992641/packages/eslint-plugin/src/rules/no-unsafe-argument.ts#L145
2. https://github.com/typescript-eslint/typescript-eslint/blob/ff93e6a839f7c34ed8c3b1740a20d37e0e992641/packages/eslint-plugin/src/rules/no-unnecessary-type-constraint.ts#L41

I need to investigate to see what's going on.