Update linkedca package.

go.mod

@@ -33,7 +33,7 @@ require (
 	go.mozilla.org/pkcs7 v0.0.0-20210826202110-33d05740a352
 	go.step.sm/cli-utils v0.4.1
 	go.step.sm/crypto v0.11.0
-	go.step.sm/linkedca v0.5.0
+	go.step.sm/linkedca v0.7.0
 	golang.org/x/crypto v0.0.0-20210915214749-c084706c2272
 	golang.org/x/net v0.0.0-20210913180222-943fd674d43e
 	google.golang.org/api v0.47.0

go.sum

@@ -571,8 +571,8 @@ go.step.sm/cli-utils v0.4.1/go.mod h1:hWYVOSlw8W9Pd+BwIbs/aftVVMRms3EG7Q2qLRwc0W
 go.step.sm/crypto v0.9.0/go.mod h1:+CYG05Mek1YDqi5WK0ERc6cOpKly2i/a5aZmU1sfGj0=
 go.step.sm/crypto v0.11.0 h1:VDpeVgEmqme/FK2w5QINxkOQ1FWOm/Wi2TwQXiacKr8=
 go.step.sm/crypto v0.11.0/go.mod h1:5YzQ85BujYBu6NH18jw7nFjwuRnDch35nLzH0ES5sKg=
-go.step.sm/linkedca v0.5.0 h1:oZVRSpElM7lAL1XN2YkjdHwI/oIZ+1ULOnuqYPM6xjY=
-go.step.sm/linkedca v0.5.0/go.mod h1:5uTRjozEGSPAZal9xJqlaD38cvJcLe3o1VAFVjqcORo=
+go.step.sm/linkedca v0.7.0 h1:ydYigs0CgLFkPGjOO4KJcAcAWbuPP8ECF1IsyHdftYc=
+go.step.sm/linkedca v0.7.0/go.mod h1:5uTRjozEGSPAZal9xJqlaD38cvJcLe3o1VAFVjqcORo=
 go.uber.org/atomic v1.3.2/go.mod h1:gD2HeocX3+yG+ygLZcrzQJaqmWj9AIm7n08wl/qW/PE=
 go.uber.org/atomic v1.5.0/go.mod h1:sABNBOSYdrvTF6hTgEIbc7YasKWGhgEQZyfxyTvoXHQ=
 go.uber.org/multierr v1.1.0/go.mod h1:wR5kodmAFQ0UK8QlbwjlSNy0Z68gJhDJUG5sjR94q/0=