Bump extension version to v0.8.5 #11028

Job	Run time
lint_node	27s
build_node (ubuntu-latest)	1m 1s
Ruby 3.1 on ubuntu-latest	16m 47s
lint_ruby	25s
build_node (macos-latest)	2m 21s
Ruby 3.2 on ubuntu-latest	15m 23s
Verify Jekyll website builds	7s
build_node (windows-latest)	8m 49s
Ruby 3.3 on ubuntu-latest	10m 23s
Ruby 3.1 on macos-latest	9m 9s
Ruby 3.2 on macos-latest	11m 10s
Ruby 3.3 on macos-latest	5m 54s
Ruby 3.1 on windows-latest	22m 32s
Ruby 3.2 on windows-latest	19m 47s
Ruby 3.3 on windows-latest	25m 25s
	2h 29m 40s

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