chore(deps): update dependency @rollup/plugin-babel to v6.0.4 #3839

Job	Run time
Verify changes (lit-element)	59s
Verify changes (lit-element-ts-esbuild)	1m 20s
Verify changes (lit-element-ts-tsc)	44s
Verify changes (html-test)	1m 2s
Verify changes (preact-htm)	58s
Verify changes (preact-jsx)	50s
Verify changes (preact-tsx)	2m 14s
Verify changes (puppeteer)	48s
Verify changes (playwright)	1m 7s
Verify changes (import-maps)	44s
Verify changes (mock-es-module)	49s
Verify changes (visual-regression)	1m 14s
Verify changes (saucelabs)	3m 52s
Verify changes (guides/test-runner/getting-started)	42s
Verify changes (guides/test-runner/watch-and-debug)	56s
Verify changes (guides/test-runner/playwright)	1m 4s
Verify changes (guides/test-runner/responsive)	53s
Verify changes (guides/test-runner/typescript)	1m 12s
Verify changes (react-htm)	1m 11s
Verify changes (react-jsx)	39s
Verify changes (react-tsx)	1m 23s
Verify changes (snowpack-lit)	1m 4s
Verify changes (snowpack-react)	1m 10s
Verify changes (snowpack-svelte)	1m 6s
	28m 1s

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