Deploy landing page to GitHub Pages #262

Job	Run time
release	15s
build (windows-latest, x86_64-pc-windows-msvc)	6m 6s
build (macos-latest, x86_64-apple-darwin)	4m 1s
build (ubuntu-24.04, x86_64-unknown-linux-gnu)	6m 2s
build (macos-latest, aarch64-apple-darwin)	7m 6s
	23m 30s

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