New index.html.gz to fix #1261 #699

Job	Run time
tests (ubuntu-latest, tests)	31s
build (ubuntu-latest, noradio)	2m 4s
tests (macos-latest, tests)	36s
build (ubuntu-latest, wifi)	2m 22s
tests (windows-latest, tests_nosan)	1m 16s
build (ubuntu-latest, bt)	2m 9s
build (macos-latest, noradio)	1m 32s
build (macos-latest, wifi)	1m 46s
build (macos-latest, bt)	1m 58s
build (windows-latest, noradio)	4m 5s
build (windows-latest, wifi)	5m 31s
build (windows-latest, bt)	4m 35s
	28m 25s

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