hosts: Add build0-amd64

*build0-amd64.securepassage.com* is a Jenkins agent that runs Docker,
allowing pipeline jobs to run inside containers.

certs/docker/build0-amd64.pyrocufflink.blue/dustin.csr

@@ -0,0 +1,26 @@
+-----BEGIN CERTIFICATE REQUEST-----
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+-----END CERTIFICATE REQUEST-----