Repro

rules:
  '@typescript-eslint/explicit-function-return-type': error

const list: readonly {
  readonly foo: (bar: string) => boolean // set return type
}[] = [
  {
    foo: (bar) => true, // <- ESLint complains here
  },
]

Expected Result
ESLint not complaining about missing return type within the array

Actual Result
ESLint complaining about missing return type within the array

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