Add test for false-positive of no-duplicate-on rule

[sergeysova]

Example:

const change = createEvent<{ first: string; second: string }>();

const firstField = createField();
const secondField = createField();

firstField.$value.on(change, (_, { first }) => first);
// Error: Method `.on` is called on store `$value` more than once for change.
secondField.$value.on(change, (_, { second }) => second);

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