JSX syntax extension is not currently enabled for Jest runner

[AndiLavera]

Problem

It seems like the loader I defined in my config is not being passed to Esbuild.

esbuild-runner.config.js

module.exports = {
  debug: true,
  esbuild: {
    loader: { '.js': 'jsx' },
    target: 'esnext',
  },
  type: 'transform', // I also tried bundle
};

Note: Dropped a console.log in this file, it is being loaded.

Jest config

{
  "transform": {
    "^.+\\.(js|jsx|ts|tsx)$": "esbuild-runner/jest"
  }
}

Error Message

yarn run v1.22.17
$ jest spec/javascript/components/Accordion.test.js

 RUNS  spec/javascript/components/Accordion.test.js
✘ [ERROR] The JSX syntax extension is not currently enabled

    /workspace/spec/javascript/components/Accordion.test.js:11:6:
      11 │       <Accordion expanded={false}>
         ╵       ^

  The esbuild loader for this file is currently set to "js" but it must be set to "jsx" to
 FAIL  spec/javascript/components/Accordion.test.js { '.js': 'jsx' }" to do that.
  ● Test suite failed to run

    Transform failed with 1 error:
    /workspace/spec/javascript/components/Accordion.test.js:11:6: ERROR: The JSX syntax extension is not currently enabled

      at failureErrorWithLog (node_modules/esbuild/lib/main.js:1603:15)
      at node_modules/esbuild/lib/main.js:1392:29
      at node_modules/esbuild/lib/main.js:666:9
      at handleIncomingPacket (node_modules/esbuild/lib/main.js:763:9)
      at Socket.readFromStdout (node_modules/esbuild/lib/main.js:632:7)

Test Suites: 1 failed, 1 total
Tests:       0 total
Snapshots:   0 total
Time:        0.228 s
Ran all test suites matching /spec\/javascript\/components\/Accordion.test.js/i.
error Command failed with exit code 1.

[eliseumds]

Same here. Running jest with --no-cache.