Merge pull request #22 from ngrok/josh/update-ci #10

Job	Run time
Clippy	1m 51s
Rustfmt	3m 49s
Semver Check (ngrok-api)	2m 16s
Test Nix	1m 52s
Test Stable	2m 44s
Test Windows Stable	3m 46s
Udeps	1m 50s
Publish ngrok-api / Publish and Tag	48s
	18m 56s

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