Update Notary to 0.7.0

library/notary

@@ -1,10 +1,10 @@
 Maintainers: Justin Cormack (@justincormack)
 GitRepo: https://github.com/docker/notary-official-images.git
-GitCommit: fe7543aa8fc466423578b726570192028bbb818c
+GitCommit: 297f548a568a8bcf8177c10e05165f11c9557dfc
 Architectures: amd64, arm32v6, arm64v8, i386, ppc64le, s390x
 
-Tags: server-0.6.1-2, server
+Tags: server-0.7.0, server
 Directory: notary-server
 
-Tags: signer-0.6.1-2, signer
+Tags: signer-0.7.0, signer
 Directory: notary-signer