bump cosign dependency to pick up buildkite OIDC provider (#276)

Signed-off-by: Jason Hall <jason@chainguard.dev>

go.mod

@@ -17,11 +17,11 @@ require (
 	github.com/mattn/go-tty v0.0.4
 	github.com/patrickmn/go-cache v2.1.0+incompatible
 	github.com/secure-systems-lab/go-securesystemslib v0.5.0
-	github.com/sigstore/cosign/v2 v2.0.1-0.20230302191159-6dcfd1af02ba
+	github.com/sigstore/cosign/v2 v2.0.1-0.20230404223517-fdeea9fd1574
 	github.com/sigstore/fulcio v1.2.0
 	github.com/sigstore/rekor v1.1.0
 	github.com/sigstore/sigstore v1.6.0
-	github.com/spf13/cobra v1.6.1
+	github.com/spf13/cobra v1.7.0
 	github.com/spf13/pflag v1.0.5
 	golang.org/x/crypto v0.7.0
 	golang.org/x/oauth2 v0.6.0
@@ -75,20 +75,21 @@ require (
 	github.com/awslabs/amazon-ecr-credential-helper/ecr-login v0.0.0-20230110223219-40efa3093a22 // indirect
 	github.com/benbjohnson/clock v1.3.0 // indirect
 	github.com/blang/semver v3.5.1+incompatible // indirect
+	github.com/buildkite/agent/v3 v3.45.0 // indirect
 	github.com/chrismellard/docker-credential-acr-env v0.0.0-20221129204813-6a4d6ed5d396 // indirect
 	github.com/clbanning/mxj/v2 v2.5.7 // indirect
 	github.com/cloudflare/circl v1.3.1 // indirect
 	github.com/common-nighthawk/go-figure v0.0.0-20210622060536-734e95fb86be // indirect
-	github.com/containerd/stargz-snapshotter/estargz v0.14.0 // indirect
+	github.com/containerd/stargz-snapshotter/estargz v0.14.3 // indirect
 	github.com/cpuguy83/go-md2man/v2 v2.0.2 // indirect
 	github.com/cyberphone/json-canonicalization v0.0.0-20220623050100-57a0ce2678a7 // indirect
 	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/digitorus/pkcs7 v0.0.0-20221212123742-001c36b64ec3 // indirect
 	github.com/digitorus/timestamp v0.0.0-20221019182153-ef3b63b79b31 // indirect
 	github.com/dimchansky/utfbom v1.1.1 // indirect
-	github.com/docker/cli v20.10.23+incompatible // indirect
+	github.com/docker/cli v23.0.1+incompatible // indirect
 	github.com/docker/distribution v2.8.1+incompatible // indirect
-	github.com/docker/docker v20.10.24+incompatible // indirect
+	github.com/docker/docker v23.0.1+incompatible // indirect
 	github.com/docker/docker-credential-helpers v0.7.0 // indirect
 	github.com/emicklei/go-restful/v3 v3.10.1 // indirect
 	github.com/emirpasic/gods v1.18.1 // indirect
@@ -97,7 +98,7 @@ require (
 	github.com/go-chi/chi v4.1.2+incompatible // indirect
 	github.com/go-git/gcfg v1.5.0 // indirect
 	github.com/go-jose/go-jose/v3 v3.0.0 // indirect
-	github.com/go-logr/logr v1.2.3 // indirect
+	github.com/go-logr/logr v1.2.4 // indirect
 	github.com/go-logr/stdr v1.2.2 // indirect
 	github.com/go-openapi/analysis v0.21.4 // indirect
 	github.com/go-openapi/errors v0.20.3 // indirect
@@ -117,11 +118,12 @@ require (
 	github.com/golang/snappy v0.0.4 // indirect
 	github.com/google/certificate-transparency-go v1.1.4 // indirect
 	github.com/google/gnostic v0.6.9 // indirect
-	github.com/google/go-containerregistry v0.13.1-0.20230203223142-b3c23b4c3f28 // indirect
-	github.com/google/go-github/v50 v50.1.0 // indirect
+	github.com/google/go-containerregistry v0.14.0 // indirect
+	github.com/google/go-github/v50 v50.2.0 // indirect
 	github.com/google/go-querystring v1.1.0 // indirect
 	github.com/google/gofuzz v1.2.0 // indirect
 	github.com/google/trillian v1.5.1 // indirect
+	github.com/google/uuid v1.3.0 // indirect
 	github.com/googleapis/enterprise-certificate-proxy v0.2.3 // indirect
 	github.com/hashicorp/go-cleanhttp v0.5.2 // indirect
 	github.com/hashicorp/go-retryablehttp v0.7.2 // indirect
@@ -134,7 +136,7 @@ require (
 	github.com/josharian/intern v1.0.0 // indirect
 	github.com/json-iterator/go v1.1.12 // indirect
 	github.com/kevinburke/ssh_config v1.2.0 // indirect
-	github.com/klauspost/compress v1.15.15 // indirect
+	github.com/klauspost/compress v1.16.0 // indirect
 	github.com/leodido/go-urn v1.2.2 // indirect
 	github.com/letsencrypt/boulder v0.0.0-20230125211608-3866e4f60ddd // indirect
 	github.com/magiconair/properties v1.8.7 // indirect
@@ -151,6 +153,7 @@ require (
 	github.com/opencontainers/go-digest v1.0.0 // indirect
 	github.com/opencontainers/image-spec v1.1.0-rc2 // indirect
 	github.com/opentracing/opentracing-go v1.2.0 // indirect
+	github.com/pborman/uuid v1.2.1 // indirect
 	github.com/pelletier/go-toml/v2 v2.0.6 // indirect
 	github.com/pjbgf/sha1cd v0.3.0 // indirect
 	github.com/pkg/errors v0.9.1 // indirect
@@ -159,15 +162,15 @@ require (
 	github.com/segmentio/ksuid v1.0.4 // indirect
 	github.com/sergi/go-diff v1.3.1 // indirect
 	github.com/shibumi/go-pathspec v1.3.0 // indirect
-	github.com/sigstore/timestamp-authority v0.2.1 // indirect
+	github.com/sigstore/timestamp-authority v1.0.0 // indirect
 	github.com/sirupsen/logrus v1.9.0 // indirect
 	github.com/skeema/knownhosts v1.1.0 // indirect
 	github.com/skratchdot/open-golang v0.0.0-20200116055534-eef842397966 // indirect
 	github.com/spf13/afero v1.9.3 // indirect
 	github.com/spf13/cast v1.5.0 // indirect
 	github.com/spf13/jwalterweatherman v1.1.0 // indirect
 	github.com/spf13/viper v1.15.0 // indirect
-	github.com/spiffe/go-spiffe/v2 v2.1.3 // indirect
+	github.com/spiffe/go-spiffe/v2 v2.1.4 // indirect
 	github.com/subosito/gotenv v1.4.2 // indirect
 	github.com/syndtr/goleveldb v1.0.1-0.20220721030215-126854af5e6d // indirect
 	github.com/tent/canonical-json-go v0.0.0-20130607151641-96e4ba3a7613 // indirect
@@ -177,13 +180,13 @@ require (
 	github.com/tjfoc/gmsm v1.4.1 // indirect
 	github.com/transparency-dev/merkle v0.0.1 // indirect
 	github.com/vbatts/tar-split v0.11.2 // indirect
-	github.com/xanzy/go-gitlab v0.80.2 // indirect
+	github.com/xanzy/go-gitlab v0.81.0 // indirect
 	github.com/xanzy/ssh-agent v0.3.3 // indirect
 	github.com/zeebo/errs v1.3.0 // indirect
 	go.mongodb.org/mongo-driver v1.11.3 // indirect
 	go.opencensus.io v0.24.0 // indirect
-	go.opentelemetry.io/otel v1.13.0 // indirect
-	go.opentelemetry.io/otel/trace v1.13.0 // indirect
+	go.opentelemetry.io/otel v1.14.0 // indirect
+	go.opentelemetry.io/otel/trace v1.14.0 // indirect
 	go.step.sm/crypto v0.28.0 // indirect
 	go.uber.org/atomic v1.10.0 // indirect
 	go.uber.org/multierr v1.9.0 // indirect
@@ -196,7 +199,7 @@ require (
 	golang.org/x/term v0.6.0 // indirect
 	golang.org/x/text v0.8.0 // indirect
 	golang.org/x/time v0.3.0 // indirect
-	golang.org/x/tools v0.6.0 // indirect
+	golang.org/x/tools v0.7.0 // indirect
 	google.golang.org/api v0.114.0 // indirect
 	google.golang.org/appengine v1.6.7 // indirect
 	google.golang.org/genproto v0.0.0-20230306155012-7f2fa6fef1f4 // indirect