Udating svelte version to 4.2.2

[OvidijusParsiunas]

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[OvidijusParsiunas]

Svelte has recently published version 4.2.2 which fixes a camel case naming convention issue for properties. This PR version updates the Svelte version used within this repo to run the web component tests against it.

I am aware that there is another PR out there that updates some of Svelte tests, so if this PR overcomplicates things I am ok if it is declined.

[nileshtrivedi]

@rictic Could you please look at this PR to update the Svelte version and approve? If CLA is a problem, please consider approving #2296

[rictic]

Sorry for the delay, this needed to update the expectations too. Fixed in #2369