chartjs-plugin-datalabels with requirejs (ReferenceError: module is not defined)

Hello guys,

I'm currently trying to set up chartjs 3 + chartjs datalabels 2 along with requirejs, and I'm getting the following errors:
```
helpers.js:1 Uncaught ReferenceError: module is not defined

chartjs-plugin-datalabels.min.js:7 Uncaught TypeError: Cannot read properties of undefined (reading 'merge')
```

Here's my requirejs config:
```
requirejs.config({
paths: {
'chartjs': '../vendor/chart.js/dist/chart.min',
'chartjs-plugin-datalabels': '../vendor/chartjs-plugin-datalabels/dist/chartjs-plugin-datalabels.min',
},

shim: {
'chartjs-plugin-datalabels': {
deps: ['chartjs']
},
},

map: {
'chartjs-plugin-datalabels': {
"chart.js": "chartjs",
"chart.js/helpers": "../vendor/chart.js/helpers/helpers"
}
}
});
```

Everything was working well with chartjs 2 + chartjs datalabels 1, but with this upgrade, it's not anymore. I'm guessing it has to do with the `module.exports = require('..').helpers;` in helpers.js, but I don't know how to fix this.

Can you help me?
Thanks a lot

Start by reproducing the reported setup with the supplied RequireJS paths, shim, and map configuration. Inspect helpers.js and dist/chartjs-plugin-datalabels.min.js alongside the Chart.js 3 loading entry points to determine the module-format mismatch. Done means the RequireJS setup loads Chart.js and the datalabels plugin without either reported error and the plugin functions as expected.

Written by the indexing model from the issue text.