Bump github.com/sigstore/cosign from 1.11.0 to 1.12.0 (#289)

Bumps [github.com/sigstore/cosign](https://github.com/sigstore/cosign) from 1.11.0 to 1.12.0.
- [Release notes](https://github.com/sigstore/cosign/releases)
- [Changelog](https://github.com/sigstore/cosign/blob/main/CHANGELOG.md)
- [Commits](sigstore/cosign@v1.11.0...v1.12.0)

---
updated-dependencies:
- dependency-name: github.com/sigstore/cosign
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <support@github.com>

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

go.mod

@@ -14,7 +14,7 @@ require (
 	github.com/sigstore/gitsign v0.3.0
 	github.com/sigstore/rekor v0.11.0
 	github.com/spf13/cobra v1.5.0
-	github.com/spf13/viper v1.12.0
+	github.com/spf13/viper v1.13.0
 	go.uber.org/zap v1.22.0
 	gopkg.in/yaml.v3 v3.0.1
 	k8s.io/api v0.23.5
@@ -118,7 +118,7 @@ require (
 	github.com/grpc-ecosystem/go-grpc-middleware v1.3.0 // indirect
 	github.com/grpc-ecosystem/go-grpc-prometheus v1.2.0 // indirect
 	github.com/grpc-ecosystem/grpc-gateway v1.16.0 // indirect
-	github.com/grpc-ecosystem/grpc-gateway/v2 v2.7.0 // indirect
+	github.com/grpc-ecosystem/grpc-gateway/v2 v2.11.2 // indirect
 	github.com/hashicorp/errwrap v1.1.0 // indirect
 	github.com/hashicorp/go-multierror v1.1.1 // indirect
 	github.com/hashicorp/hcl v1.0.0 // indirect
@@ -162,7 +162,7 @@ require (
 	github.com/opentracing/opentracing-go v1.2.0 // indirect
 	github.com/ostreedev/ostree-go v0.0.0-20210805093236-719684c64e4f // indirect
 	github.com/pelletier/go-toml v1.9.5 // indirect
-	github.com/pelletier/go-toml/v2 v2.0.1 // indirect
+	github.com/pelletier/go-toml/v2 v2.0.5 // indirect
 	github.com/pjbgf/sha1cd v0.2.3 // indirect
 	github.com/pkg/errors v0.9.1 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
@@ -178,8 +178,8 @@ require (
 	github.com/secure-systems-lab/go-securesystemslib v0.4.0 // indirect
 	github.com/sergi/go-diff v1.2.0 // indirect
 	github.com/shibumi/go-pathspec v1.3.0 // indirect
-	github.com/sigstore/cosign v1.11.0 // indirect
-	github.com/sigstore/sigstore v1.4.0 // indirect
+	github.com/sigstore/cosign v1.12.0 // indirect
+	github.com/sigstore/sigstore v1.4.1-0.20220908204944-ec922cf4f1c2 // indirect
 	github.com/sirupsen/logrus v1.9.0 // indirect
 	github.com/skeema/knownhosts v1.1.0 // indirect
 	github.com/soheilhy/cmux v0.1.5 // indirect
@@ -189,13 +189,13 @@ require (
 	github.com/spf13/pflag v1.0.5 // indirect
 	github.com/stefanberger/go-pkcs11uri v0.0.0-20201008174630-78d3cae3a980 // indirect
 	github.com/stretchr/testify v1.8.0 // indirect
-	github.com/subosito/gotenv v1.3.0 // indirect
+	github.com/subosito/gotenv v1.4.1 // indirect
 	github.com/sylabs/sif/v2 v2.8.1 // indirect
 	github.com/syndtr/gocapability v0.0.0-20200815063812-42c35b437635 // indirect
-	github.com/syndtr/goleveldb v1.0.1-0.20210819022825-2ae1ddf74ef7 // indirect
+	github.com/syndtr/goleveldb v1.0.1-0.20220721030215-126854af5e6d // indirect
 	github.com/tchap/go-patricia v2.3.0+incompatible // indirect
 	github.com/tent/canonical-json-go v0.0.0-20130607151641-96e4ba3a7613 // indirect
-	github.com/theupdateframework/go-tuf v0.3.1 // indirect
+	github.com/theupdateframework/go-tuf v0.5.0 // indirect
 	github.com/titanous/rocacheck v0.0.0-20171023193734-afe73141d399 // indirect
 	github.com/tmc/grpc-websocket-proxy v0.0.0-20201229170055-e5319fda7802 // indirect
 	github.com/transparency-dev/merkle v0.0.1 // indirect
@@ -236,16 +236,16 @@ require (
 	golang.org/x/crypto v0.3.0 // indirect
 	golang.org/x/mod v0.6.0-dev.0.20220419223038-86c51ed26bb4 // indirect
 	golang.org/x/net v0.2.0 // indirect
-	golang.org/x/oauth2 v0.0.0-20220722155238-128564f6959c // indirect
+	golang.org/x/oauth2 v0.0.0-20220822191816-0ebed06d0094 // indirect
 	golang.org/x/sync v0.0.0-20220722155255-886fb9371eb4 // indirect
 	golang.org/x/sys v0.2.0 // indirect
 	golang.org/x/term v0.2.0 // indirect
 	golang.org/x/text v0.4.0 // indirect
 	golang.org/x/time v0.0.0-20220722155302-e5dcc9cfc0b9 // indirect
 	golang.org/x/tools v0.1.12 // indirect
 	google.golang.org/appengine v1.6.7 // indirect
-	google.golang.org/genproto v0.0.0-20220720214146-176da50484ac // indirect
-	google.golang.org/grpc v1.48.0 // indirect
+	google.golang.org/genproto v0.0.0-20220805133916-01dd62135a58 // indirect
+	google.golang.org/grpc v1.49.0 // indirect
 	google.golang.org/protobuf v1.28.1 // indirect
 	gopkg.in/cheggaaa/pb.v1 v1.0.28 // indirect
 	gopkg.in/inf.v0 v0.9.1 // indirect