chore(deps): bump github.com/secure-systems-lab/go-securesystemslib (#4321)

Author: dependabot[bot]

go.mod

@@ -31,7 +31,7 @@ require (
 	github.com/mozillazg/docker-credential-acr-helper v0.4.0
 	github.com/nozzle/throttler v0.0.0-20180817012639-2ea982251481
 	github.com/open-policy-agent/opa v1.6.0
-	github.com/secure-systems-lab/go-securesystemslib v0.9.0
+	github.com/secure-systems-lab/go-securesystemslib v0.9.1
 	github.com/sigstore/fulcio v1.7.1
 	github.com/sigstore/protobuf-specs v0.5.0
 	github.com/sigstore/rekor v1.4.0

go.sum

@@ -1402,8 +1402,8 @@ github.com/sassoftware/relic v7.2.1+incompatible/go.mod h1:CWfAxv73/iLZ17rbyhIEq
 github.com/sassoftware/relic/v7 v7.6.2 h1:rS44Lbv9G9eXsukknS4mSjIAuuX+lMq/FnStgmZlUv4=
 github.com/sassoftware/relic/v7 v7.6.2/go.mod h1:kjmP0IBVkJZ6gXeAu35/KCEfca//+PKM6vTAsyDPY+k=
 github.com/sclevine/agouti v3.0.0+incompatible/go.mod h1:b4WX9W9L1sfQKXeJf1mUTLZKJ48R1S7H23Ji7oFO5Bw=
-github.com/secure-systems-lab/go-securesystemslib v0.9.0 h1:rf1HIbL64nUpEIZnjLZ3mcNEL9NBPB0iuVjyxvq3LZc=
-github.com/secure-systems-lab/go-securesystemslib v0.9.0/go.mod h1:DVHKMcZ+V4/woA/peqr+L0joiRXbPpQ042GgJckkFgw=
+github.com/secure-systems-lab/go-securesystemslib v0.9.1 h1:nZZaNz4DiERIQguNy0cL5qTdn9lR8XKHf4RUyG1Sx3g=
+github.com/secure-systems-lab/go-securesystemslib v0.9.1/go.mod h1:np53YzT0zXGMv6x4iEWc9Z59uR+x+ndLwCLqPYpLXVU=
 github.com/segmentio/ksuid v1.0.4 h1:sBo2BdShXjmcugAMwjugoGUdUV0pcxY5mW4xKRn3v4c=
 github.com/segmentio/ksuid v1.0.4/go.mod h1:/XUiZBD3kVx5SmUOl55voK5yeAbBNNIed+2O73XgrPE=
 github.com/sergi/go-diff v1.3.1 h1:xkr+Oxo4BOQKmkn/B9eMK0g5Kg/983T9DqqPHwYqD+8=