I was posting this answer on behalf of @Dixy Barahona because it would be helpful for the community members if they are facing the same issue.
 
- The problem is that the required packages were not being installed correctly during deployment. Initially, Dixy had tried using GitHub Actions to install the packages, but there was likely an issue with the `.yml` configuration that prevented the installation from succeeding.
 
To solve the problem, Use **Azure CLI (`az cli`)** for deployment. This method automatically bundles everything, including the necessary packages, and uploads them to Azure, check that all dependencies are properly installed.
 
Here is a basic command to deploy using `az cli`:
 
```bash
az functionapp deployment source config-zip \
  --resource-group <resource-group-name> \
  --name <function-app-name> \
  --src <path-to-your-zip-file>