Bump webpack to v5.72.1 and tweak stats scripts

[steverep]

Proposed change

This bumps webpack to version 5.72.1, stopping short of the latest 5.75.0. Something breaks from 5.72.1 to 5.73.0 to cause the bundles not to load at all in the browser, with no compilation or runtime errors. I haven't been able to figure out the cause, but the symptoms point to a runtime/manifest issue.

Compared to our current version of 5.55.1, 5.72.1 is nearly identical in terms of basic stats, except it compiles about 20% faster.

The scripts that run the CLI to get detailed stats also needed some tweaking.

Type of change

• Dependency upgrade
• Bugfix (non-breaking change which fixes an issue)
• New feature (thank you!)
• Breaking change (fix/feature causing existing functionality to break)
• Code quality improvements to existing code or addition of tests

Example configuration

Additional information

• This PR fixes or closes issue: fixes #
• This PR is related to issue or discussion:
• Link to documentation pull request:

Checklist

• The code change is tested and works locally.
• There is no commented out code in this PR.
• Tests have been added to verify that the new code works.

If user exposed functionality or configuration variables are added/changed:

• Documentation added/updated for www.home-assistant.io

[steverep]

FYI - webpack/webpack#16097 seems like it could be the same issue.