chore: bump github.com/in-toto/go-witness from 0.2.2 to 0.2.3

Bumps [github.com/in-toto/go-witness](https://github.com/in-toto/go-witness) from 0.2.2 to 0.2.3.
- [Release notes](https://github.com/in-toto/go-witness/releases)
- [Changelog](https://github.com/in-toto/go-witness/blob/main/.goreleaser.yaml)
- [Commits](in-toto/go-witness@v0.2.2...v0.2.3)

---
updated-dependencies:
- dependency-name: github.com/in-toto/go-witness
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

go.mod

@@ -14,7 +14,7 @@ require (
 	github.com/gorilla/handlers v1.5.2
 	github.com/gorilla/mux v1.8.1
 	github.com/hashicorp/go-multierror v1.1.1
-	github.com/in-toto/go-witness v0.2.2
+	github.com/in-toto/go-witness v0.2.3
 	github.com/kelseyhightower/envconfig v1.4.0
 	github.com/lib/pq v1.10.9
 	github.com/minio/minio-go/v7 v7.0.67

go.sum

@@ -113,8 +113,8 @@ github.com/hashicorp/golang-lru/v2 v2.0.3 h1:kmRrRLlInXvng0SmLxmQpQkpbYAvcXm7NPD
 github.com/hashicorp/golang-lru/v2 v2.0.3/go.mod h1:QeFd9opnmA6QUJc5vARoKUSoFhyfM2/ZepoAG6RGpeM=
 github.com/hashicorp/hcl/v2 v2.13.0 h1:0Apadu1w6M11dyGFxWnmhhcMjkbAiKCv7G1r/2QgCNc=
 github.com/hashicorp/hcl/v2 v2.13.0/go.mod h1:e4z5nxYlWNPdDSNYX+ph14EvWYMFm3eP0zIUqPc2jr0=
-github.com/in-toto/go-witness v0.2.2 h1:oyiqyzzKwX8j5zjBVdxoo0LxjMV13ujOF0l/hu5uYp8=
-github.com/in-toto/go-witness v0.2.2/go.mod h1:b5ocF+eHUYnQgQncM6nK0g5TIoUzA94gs50fS7g+uNk=
+github.com/in-toto/go-witness v0.2.3 h1:KjiaRHxW2VSyouXUW0Zrpc+7LXfFKilB86a1lqNDsAU=
+github.com/in-toto/go-witness v0.2.3/go.mod h1:b5ocF+eHUYnQgQncM6nK0g5TIoUzA94gs50fS7g+uNk=
 github.com/inconshreveable/mousetrap v1.1.0 h1:wN+x4NVGpMsO7ErUn/mUI3vEoE6Jt13X2s0bqwp9tc8=
 github.com/inconshreveable/mousetrap v1.1.0/go.mod h1:vpF70FUmC8bwa3OWnCshd2FqLfsEA9PFc4w1p2J65bw=
 github.com/josharian/intern v1.0.0 h1:vlS4z54oSdjm0bgjRigI+G1HpF+tI+9rE5LLzOg8HmY=