Merge pull request #1675 from EliahKagan/run-ci/when-no-tests #383

Job	Run time
cargo-deny-advisories	26s
check-blocking	5s
cargo-deny	28s
check-packetline (ubuntu-latest)	6s
lint	3m 57s
pure-rust-build	1m 55s
test	13m 18s
test-32bit (armv7-linux-androideabi)	1m 9s
test-fast (windows-latest)	15m 1s
test-journey	4m 13s
test-fixtures-windows	14m 46s
WebAssembly (wasm32-unknown-unknown)	42s
test-fast (macos-latest)	3m 42s
WebAssembly (wasm32-wasi)	1m 13s
test-fast (ubuntu-latest)	4m 17s
Tests pass	1s
	1h 5m 19s

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