Bump sigstore/sigstore to HEAD

This PR bumps the sigstore/sigstore version to pull
9c0e2e247545c329544bf32170729d20b386a25c which is a critical fix to run cosign
in parallel.

Signed-off-by: Adolfo García Veytia (Puerco) <puerco@chainguard.dev>

go.mod

@@ -55,7 +55,7 @@ require (
 	github.com/secure-systems-lab/go-securesystemslib v0.4.0
 	github.com/sigstore/fulcio v0.1.2-0.20220114150912-86a2036f9bc7
 	github.com/sigstore/rekor v0.4.1-0.20220114213500-23f583409af3
-	github.com/sigstore/sigstore v1.2.1-0.20220610135223-ec8f2d403e07
+	github.com/sigstore/sigstore v1.2.1-0.20220614141825-9c0e2e247545
 	github.com/spf13/cobra v1.4.0
 	github.com/spf13/pflag v1.0.5
 	github.com/spf13/viper v1.12.0

go.sum

@@ -321,6 +321,7 @@ github.com/aws/aws-sdk-go v1.42.22/go.mod h1:585smgzpB/KqRA+K3y/NL/oYRqQvpNJYvLm
 github.com/aws/aws-sdk-go v1.42.25/go.mod h1:gyRszuZ/icHmHAVE4gc/r+cfCmhA1AD+vqfWbgI+eHs=
 github.com/aws/aws-sdk-go v1.44.31 h1:nr3c7pbJbFslL+U7JrM7knBxzksnK52qIZoYX8uk2I4=
 github.com/aws/aws-sdk-go v1.44.31/go.mod h1:y4AeaBuwd2Lk+GepC1E9v0qOiTws0MIWAX4oIKwKHZo=
+github.com/aws/aws-sdk-go v1.44.33 h1:OoLO99CdssiyOISnZknsQfIqESOyuMgy7pLrPW7RLKg=
 github.com/aws/aws-sdk-go-v2 v0.18.0/go.mod h1:JWVYvqSMppoMJC0x5wdwiImzgXTI9FuZwxzkQq9wy+g=
 github.com/aws/aws-sdk-go-v2 v1.7.1/go.mod h1:L5LuPC1ZgDr2xQS7AmIec/Jlc7O/Y1u2KxJyNVab250=
 github.com/aws/aws-sdk-go-v2 v1.11.0/go.mod h1:SQfA+m2ltnu1cA0soUkj4dRSsmITiVQUJvBIZjzfPyQ=
@@ -2025,6 +2026,8 @@ github.com/sigstore/sigstore v1.0.2-0.20211210190220-04746d994282/go.mod h1:SuM+
 github.com/sigstore/sigstore v1.1.0/go.mod h1:gDpcHw4VwpoL5C6N1Ud1YtBsc+ikRDwDelDlWRyYoE8=
 github.com/sigstore/sigstore v1.2.1-0.20220610135223-ec8f2d403e07 h1:cAcv/Ug89wdyTlGX6lfpanyd3Kf/PneD9BHqx6OI5RM=
 github.com/sigstore/sigstore v1.2.1-0.20220610135223-ec8f2d403e07/go.mod h1:H2yha6yWejGEGz2epQvaq7pvxrGNMkenwodO1FFSuHE=
+github.com/sigstore/sigstore v1.2.1-0.20220614141825-9c0e2e247545 h1:S6ZnBcLFZNdB6mw8QnjLgtGU1myK+X0UPpRwJ71/Z/o=
+github.com/sigstore/sigstore v1.2.1-0.20220614141825-9c0e2e247545/go.mod h1:xr0T+0gIaZyrmWtC99G8llLi1izy70nZpgVp+C1jb5k=
 github.com/sirupsen/logrus v1.0.4-0.20170822132746-89742aefa4b2/go.mod h1:pMByvHTf9Beacp5x1UXfOR9xyW/9antXMhjMPG0dEzc=
 github.com/sirupsen/logrus v1.0.6/go.mod h1:pMByvHTf9Beacp5x1UXfOR9xyW/9antXMhjMPG0dEzc=
 github.com/sirupsen/logrus v1.2.0/go.mod h1:LxeOpSwHxABJmUn/MG1IvRgCAasNZTLOkJPxbbu5VWo=