add workaround for semantic-release-cargo #3

Job	Run time
format	28s
verify-codegen	1m 38s
test (async-std-surf)	19m 34s
test (tokio-hyper)	11m 42s
test (tokio-hyper-rustls)	12m 38s
test (tokio-hyper-rustls-webpki)	17m 11s
test (blocking)	17m 17s
test (blocking-rustls)	18m 36s
test (blocking-rustls-webpki)	23m 38s
clippy (async-std-surf)	2m 41s
clippy (tokio-hyper)	2m 0s
clippy (tokio-hyper-rustls)	1m 56s
clippy (tokio-hyper-rustls-webpki)	2m 28s
clippy (blocking)	2m 7s
clippy (blocking-rustls)	2m 33s
clippy (blocking-rustls-webpki)	1m 53s
	2h 18m 20s

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