Disallow the use of certain matchers (`vitest/no-restricted-matchers`)

⚠️ This rule warns in the 🌐 all config.

This rule disallows the use of certain matchers.

{
  "vitest/no-restricted-matchers": [
    "error",
    {
      "not": null
    }
  ]
}

Examples of incorrect code for this rule with the above configuration

expect(a).not.toBe(b)

Examples of correct code for this rule with the above configuration

expect(a).toBe(b)

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