[20.10 backport] vendor: github.com/theupdateframework/notary v0.7.0-21-gbf96a202

vendor.conf

@@ -1,5 +1,4 @@
 cloud.google.com/go                                 ceeb313ad77b789a7fa5287b36a1d127b69b7093 # v0.44.3
-github.com/agl/ed25519                              5312a61534124124185d41f09206b9fef1d88403
 github.com/Azure/go-ansiterm                        d6e3b3328b783f23731bc4d058875b0371ff8109
 github.com/beorn7/perks                             37c8de3658fcb183f997c4e13e8337516ab753e6 # v1.0.1
 github.com/cespare/xxhash/v2                        d7df74196a9e781ede915320c11c378c1b2f3a1f # v2.1.1
@@ -68,7 +67,7 @@ github.com/shurcooL/sanitized_anchor_name           7bfe4c7ecddb3666a94b053b422c
 github.com/sirupsen/logrus                          6699a89a232f3db797f2e280639854bbc4b89725 # v1.7.0
 github.com/spf13/cobra                              86f8bfd7fef868a174e1b606783bd7f5c82ddf8f # v1.1.1
 github.com/spf13/pflag                              2e9d26c8c37aae03e3f9d4e90b7116f5accb7cab # v1.0.5
-github.com/theupdateframework/notary                d6e1431feb32348e0650bf7551ac5cffd01d857b # v0.6.1
+github.com/theupdateframework/notary                bf96a202a09a312ae005cd312fc06ff4d2c166ce # v0.7.0-21-gbf96a202
 github.com/tonistiigi/fsutil                        0834f99b7b85462efb69b4f571a4fa3ca7da5ac9
 github.com/tonistiigi/go-rosetta                    f79598599c5d34ea253b56a1d7c89bc6a96de7db
 github.com/tonistiigi/units                         6950e57a87eaf136bbe44ef2ec8e75b9e3569de2