Bump sigs.k8s.io/release-utils from 0.6.0 to 0.7.3 (sigstore#2102)

Bumps [sigs.k8s.io/release-utils](https://github.com/kubernetes-sigs/release-utils) from 0.6.0 to 0.7.3.
- [Release notes](https://github.com/kubernetes-sigs/release-utils/releases)
- [Commits](kubernetes-sigs/release-utils@v0.6.0...v0.7.3)

---
updated-dependencies:
- dependency-name: sigs.k8s.io/release-utils
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

@@ -84,7 +84,7 @@ require (
 	k8s.io/apimachinery v0.23.5
 	k8s.io/client-go v0.23.5
 	k8s.io/utils v0.0.0-20220210201930-3a6ce19ff2f9
-	sigs.k8s.io/release-utils v0.6.0
+	sigs.k8s.io/release-utils v0.7.3
 )
 
 require (

go.sum

@@ -3324,8 +3324,8 @@ sigs.k8s.io/apiserver-network-proxy/konnectivity-client v0.0.22/go.mod h1:LEScyz
 sigs.k8s.io/json v0.0.0-20211020170558-c049b76a60c6/go.mod h1:p4QtZmO4uMYipTQNzagwnNoseA6OxSUutVw05NhYDRs=
 sigs.k8s.io/json v0.0.0-20211208200746-9f7c6b3444d2 h1:kDi4JBNAsJWfz1aEXhO8Jg87JJaPNLh5tIzYHgStQ9Y=
 sigs.k8s.io/json v0.0.0-20211208200746-9f7c6b3444d2/go.mod h1:B+TnT182UBxE84DiCz4CVE26eOSDAeYCpfDnC2kdKMY=
-sigs.k8s.io/release-utils v0.6.0 h1:wJDuzWJqPH4a5FAxAXE2aBvbB6UMIW7iYMhsKnIMQkA=
-sigs.k8s.io/release-utils v0.6.0/go.mod h1:kR1/DuYCJ4covppUasYNcA11OixC9O37B/E0ejRfb+c=
+sigs.k8s.io/release-utils v0.7.3 h1:6pS8x6c5RmdUgR9qcg1LO6hjUzuE4Yo9TGZ3DemrZdM=
+sigs.k8s.io/release-utils v0.7.3/go.mod h1:n0mVez/1PZYZaZUTJmxewxH3RJ/Lf7JUDh7TG1CASOE=
 sigs.k8s.io/structured-merge-diff/v4 v4.0.1/go.mod h1:bJZC9H9iH24zzfZ/41RGcq60oK1F7G282QMXDPYydCw=
 sigs.k8s.io/structured-merge-diff/v4 v4.0.2/go.mod h1:bJZC9H9iH24zzfZ/41RGcq60oK1F7G282QMXDPYydCw=
 sigs.k8s.io/structured-merge-diff/v4 v4.0.3/go.mod h1:bJZC9H9iH24zzfZ/41RGcq60oK1F7G282QMXDPYydCw=