Backport for updated html-webpack-plugin dep and latest webpack contrib release

[agubler]

Type: bug

The following has been addressed in the PR:

• [ ] There is a related issue
• [ ] All code has been formatted with prettier
• [ ] Unit or Functional tests are included in the PR
• [ ] schema.json has been updated appropriately

Description:

Backport for #452 and latest v7 dojo/webpack-contrib

[agubler]

This will break until webpack-contrib@7.0.7 has been released