Faker types are incompatible with contract definition for number enums

[artur-ptaszek-mck]

What are the steps to reproduce this issue?

1. Create a contract with the following property:

{
  "type": "number",
  "enum": [
    2
  ],
  "nullable": true
}

2. Faker produces the following:

type: faker.helpers.arrayElement([
  faker.number.int({ min: undefined, max: undefined }),
  null,
]),

3. Which then leads to this Typescript error

typescript: Type 'number | null' is not assignable to type 'EnumType'.
  Type 'number' is not assignable to type 'EnumType'. [2322]

What happens?

…

What were you expecting to happen?

Not having a Typescript error

Any logs, error output, etc?

…

Any other comments?

…

What versions are you using?

Operating System: macOS
Package Version: 6.29.1
Browser Version: …