build(deps): bump helm.sh/helm/v3 from 3.21.0 to 3.21.3 in /modules/har - #104

Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: arduino/setup-task@v2, golangci/golangci-lint-action@v6. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/