fix(dev): Prevent stripping query params from CSS in HMR

[matthewp]

Description

During HMR, this change prevents query params from being stripped when
reloading the CSS.

Additional context

None

What is the purpose of this pull request?

• Bug fix
• New Feature
• Documentation update
• Other

Before submitting the PR, please make sure you do the following

• Read the Contributing Guidelines.
• Read the Pull Request Guidelines and follow the Commit Convention.
• Check that there isn't already a PR that solves the problem the same way to avoid creating a duplicate.
• Provide a description in this PR that addresses what the PR is solving, or reference the issue that it solves (e.g. fixes #123).
• Ideally, include relevant tests that fail without this PR but pass with it.

[matthewp]

Looks like a couple of other tests need updating, fixing now.

[matthewp]

This is ready for review.

[patak-dev]

Looks good @matthewp. I pushed a change as it was easier to avoid going through the GitHub suggest dance in this one. I updated the test so we don't need to add a new client message vite:afterUpdate:css. If this event is important to you, it would be good to create a new feature request or PR to discuss.

[matthewp]

@patak-dev nope, I only created that event for the test. Your way works too, thanks!