AwaitExpression does not include ImportExpression as possible value of argument property

[G-Rath]

• 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

https://www.typescriptlang.org/play?#code/JYWwDg9gTgLgBAbzgQQMoBUD6A5A8gEQFFN0BNABUNQBo51Ur0oBTZuAXzgDMoIQ4A5AAEYATzDMAzgGMowMDAC0UgDbAAdjAD0AVxjAVkgQG4AsACgL0iOsnwAJsxjMoIDcwCS4aDFQQdUNJsALxwABQWcHDqEI4AXHQMGCzMAHTIAO4AhsAwhAAeYCySksA21BYAlAl2cuoA5nAAPtE6KipwwQB8iJFwwFzhMY6pWVD1OiDMmqliEp3BoWhYeEQkFFSpXpCwBUVSpTaVveZRUVpafewWfSwwAeqt7Wbm7MZAA

import { AST_NODE_TYPES, TSESTree } from '@typescript-eslint/utils';

const determineImportSource = (
  node: TSESTree.AwaitExpression,
): string | null => {
  if (node.argument.type === AST_NODE_TYPES.ImportExpression) {
    //
  }

  return null;
};

Expected Result

No errors

Actual Result

An error from TypeScript:

This condition will always return 'false' since the types 'AST_NODE_TYPES.ArrayExpression | AST_NODE_TYPES.ArrayPattern | AST_NODE_TYPES.ArrowFunctionExpression | AST_NODE_TYPES.AwaitExpression | AST_NODE_TYPES.CallExpression | AST_NODE_TYPES.ClassExpression | ... 18 more ... | AST_NODE_TYPES.TSTypeAssertion' and 'AST_NODE_TYPES.ImportExpression' have no overlap

Additional Info

Here's an AST tree showing that it's possible to have an import expression as the argument of an await expression:

await import('@jest/globals');

https://astexplorer.net/#/gist/bd61e9f9222ff844ddbd1748895d8f8f/07c5c90e2933a965ef5329f4eb68588910343271

Versions

package	version
@typescript-eslint/types	5.20.0
TypeScript	4.6.3
node	v14.18.2

[G-Rath]

(I don't think typescript-estree is actually the package this bug is in - I think it's in types; sorry 😅)

[bradzacher]

ImportExpression should be added to LeftHandSideExpression.