Test

docs: add missing pre-installed extension entries #3554

Job	Run time
test-matrix (ubuntu-20.04)	8m 50s
test-matrix (self-hosted, macos, arm64)	1m 18s
deno-checks	12s
clippy (ubuntu-20.04)	5m 3s
clippy (self-hosted, macos, arm64)	50s
oldstable (ubuntu-20.04)	5m 3s
all-features (ubuntu-20.04)	11m 57s
rustfmt	14s
oldstable (self-hosted, macos, arm64)	50s
shellcheck	7s
all-features (self-hosted, macos, arm64)	1m 24s
test	1s
	35m 49s

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