TypeError: type.getSymbol is not a function

[thebanjomatic]

When attempting to use this project with typescript-eslint, I get the following error:

ESLint: 9.39.5

TypeError: type.getSymbol is not a function
Occurred while linting D:\source\test-project\src\test-file.ts:1:
Rule: "@typescript-eslint/promise-function-async"
    at containsAllTypesByName (D:\source\test-project\node_modules\@typescript-eslint\type-utils\dist\containsAllTypesByName.js:54:25)
    at predicate (D:\source\test-project\node_modules\@typescript-eslint\type-utils\dist\containsAllTypesByName.js:58:30)
    at Array.every (<anonymous>)
    at containsAllTypesByName (D:\source\test-project\node_modules\@typescript-eslint\type-utils\dist\containsAllTypesByName.js:68:41)
    at D:\source\test-project\node_modules\@typescript-eslint\eslint-plugin\dist\rules\promise-function-async.js:134:73
    at Array.every (<anonymous>)
    at validateNode (D:\source\test-project\node_modules\@typescript-eslint\eslint-plugin\dist\rules\promise-function-async.js:134:25)
    at FunctionDeclaration[async = false] (D:\source\test-project\node_modules\@typescript-eslint\eslint-plugin\dist\rules\promise-function-async.js:187:21)
    at ruleErrorHandler (D:\source\test-project\node_modules\eslint\lib\linter\linter.js:1173:33)
    at D:\source\test-project\node_modules\eslint\lib\linter\source-code-visitor.js:76:46

Code to reproduce the error:

function testFunction(): string[] {
  return []
}

There appears to be something weird going on, but I was ableo to trace containsAllTypesByName and it does:

    if (tsutils.isTypeReference(type)) {
        type = type.target;
    }

    const symbol = type.getSymbol();

In the failure path, type.target returns the literal number 73 instead of the TypeObject with id: 73 like it does with the actual typescript API.