build: ensure webpack-dev-middleware is up to date

[gregmartDOTin]

Before submitting a pull request, please make sure the following is done:

1. Fork the repository and create your branch from master.
2. Run yarn in the repository root.
3. If you've fixed a bug or added code that should be tested, add tests!
4. Ensure the test suite passes (yarn test). Tip: yarn test --watch TestName is helpful in development.
5. Make sure your code passed the conventional commits check. Read more about conventional commits

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 92.14%. Comparing base (8bc02af) to head (3650ca2).

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #1395 +/- ## ======================================= Coverage 92.14% 92.14% ======================================= Files 189 189 Lines 5309 5309 Branches 1612 1612 ======================================= Hits 4892 4892 Misses 417 417 ```

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