chore(dependabot): bump istio.io/api from 1.21.0 to 1.21.1 (#1464)

Bumps [istio.io/api](https://github.com/istio/api) from 1.21.0 to 1.21.1.
- [Commits](istio/api@1.21.0...1.21.1)

---
updated-dependencies:
- dependency-name: istio.io/api
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

go.mod

@@ -29,7 +29,7 @@ require (
 )
 
 require (
-	istio.io/api v1.21.1-0.20240404235206-c5bbf8925ab4
+	istio.io/api v1.21.1
 	istio.io/client-go v1.21.1
 )
 

go.sum

@@ -1148,8 +1148,8 @@ helm.sh/helm/v3 v3.14.3 h1:HmvRJlwyyt9HjgmAuxHbHv3PhMz9ir/XNWHyXfmnOP4=
 helm.sh/helm/v3 v3.14.3/go.mod h1:v6myVbyseSBJTzhmeE39UcPLNv6cQK6qss3dvgAySaE=
 honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
-istio.io/api v1.21.1-0.20240404235206-c5bbf8925ab4 h1:0UHHbkxkYvDR/O0bTzT5xNLLoj+9YZv8qcAFmcPVisg=
-istio.io/api v1.21.1-0.20240404235206-c5bbf8925ab4/go.mod h1:TFCMUCAHRjxBv1CsIsFCsYHPHi4axVI4vdIzVr8eFjY=
+istio.io/api v1.21.1 h1:CvpPFvJ6Mv/PUVoiVJBX7seZ90f0Sxu3g4jYVno+IqA=
+istio.io/api v1.21.1/go.mod h1:TFCMUCAHRjxBv1CsIsFCsYHPHi4axVI4vdIzVr8eFjY=
 istio.io/client-go v1.21.1 h1:gAZCeG4pV2o2L6WaD/MLruNB+tBxa+Y21BuRJmFYlAI=
 istio.io/client-go v1.21.1/go.mod h1:mqwsapfu4b1FG47puY9H8y4+ga1+d+hxfdosNQ1HclY=
 k8s.io/api v0.29.3 h1:2ORfZ7+bGC3YJqGpV0KSDDEVf8hdGQ6A03/50vj8pmw=