[restrict-plus-operands] Valid number and bigint intersections aren't supported in the restrict-plus-operands rule

[leonsilicon]

Related PR: #4795 (review)

• I have tried restarting my IDE and the issue persists.
• I have updated to the latest version of the packages.
• I have read the FAQ and my problem is not listed.

Repro

{
  "rules": {
    "@typescript-eslint/restrict-plus-operands": ["error"]
  }
}

const a = 'string' as string & { foo: 'bar' }
const b = 42 as number & { foo: 'bar' };
const c = 42n as bigint & { foo: 'bar' };

console.log(a + 'string')
console.log(b + 42);
console.log(c + 42n);

Playground link: https://typescript-eslint.io/play/#ts=4.6.2&sourceType=module&code=MYewdgzgLgBAhjAvDA5NATgSzAcxfCGDbHGAMhgG8YAzEEALlQCM518BfAKFElmaQwALACYCMMAFcAtswCm6clVr0mKVuxgcA3D3DQYwQaLDjmmHNlgVqdRizaddeyCAA2cgHRuQOABQIANSoxLgoAJQuEO5ePv4CwaLhurzRHt6+fkaJImDJXEA&rules=N4IgAgLgngDgpgZwMYCcCWMIFpEBs0B2EA9CohOktjLgK4JYD28KAhgQCYIgBcIcKFIxQgAvkA&tsConfig=N4XyA

Expected Result
No linting error on lines 6 and 7, as the rule restrict-plus-operands doesn't error when there is a valid string intersection but errors with valid number and bigint intersections.

Actual Result

Error on line 6: Operands of '+' operation must either be both strings or both numbers.ESLint(@typescript-eslint/restrict-plus-operands)
Error on line 7: Operands of '+' operation must be both bigints.ESLint(@typescript-eslint/restrict-plus-operands)

Additional Info

Real-world use case: vuejs/eslint-plugin-vue#1839 (comment)

Versions

package	version
@typescript-eslint/eslint-plugin	5.18.0
@typescript-eslint/parser	5.18.0
TypeScript	4.6.2
ESLint	8.7.0
node	N/A

[JoshuaKGoldberg]

Super, thanks for the additional context. This makes sense!