Bump k8s.io/client-go from 0.28.3 to 0.28.4

Bumps [k8s.io/client-go](https://github.com/kubernetes/client-go) from 0.28.3 to 0.28.4.
- [Changelog](https://github.com/kubernetes/client-go/blob/master/CHANGELOG.md)
- [Commits](kubernetes/client-go@v0.28.3...v0.28.4)

---
updated-dependencies:
- dependency-name: k8s.io/client-go
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

go.mod

@@ -49,7 +49,7 @@ require (
 	gopkg.in/yaml.v3 v3.0.1
 	k8s.io/api v0.28.4
 	k8s.io/apimachinery v0.28.4
-	k8s.io/client-go v0.28.3
+	k8s.io/client-go v0.28.4
 	k8s.io/code-generator v0.28.3
 	knative.dev/hack v0.0.0-20230417170854-f591fea109b3
 	knative.dev/pkg v0.0.0-20230612155445-74c4be5e935e

go.sum

@@ -1243,8 +1243,8 @@ k8s.io/api v0.28.4 h1:8ZBrLjwosLl/NYgv1P7EQLqoO8MGQApnbgH8tu3BMzY=
 k8s.io/api v0.28.4/go.mod h1:axWTGrY88s/5YE+JSt4uUi6NMM+gur1en2REMR7IRj0=
 k8s.io/apimachinery v0.28.4 h1:zOSJe1mc+GxuMnFzD4Z/U1wst50X28ZNsn5bhgIIao8=
 k8s.io/apimachinery v0.28.4/go.mod h1:wI37ncBvfAoswfq626yPTe6Bz1c22L7uaJ8dho83mgg=
-k8s.io/client-go v0.28.3 h1:2OqNb72ZuTZPKCl+4gTKvqao0AMOl9f3o2ijbAj3LI4=
-k8s.io/client-go v0.28.3/go.mod h1:LTykbBp9gsA7SwqirlCXBWtK0guzfhpoW4qSm7i9dxo=
+k8s.io/client-go v0.28.4 h1:Np5ocjlZcTrkyRJ3+T3PkXDpe4UpatQxj85+xjaD2wY=
+k8s.io/client-go v0.28.4/go.mod h1:0VDZFpgoZfelyP5Wqu0/r/TRYcLYuJ2U1KEeoaPa1N4=
 k8s.io/code-generator v0.28.3 h1:I847QvdpYx7xKiG2KVQeCSyNF/xU9TowaDAg601mvlw=
 k8s.io/code-generator v0.28.3/go.mod h1:A2EAHTRYvCvBrb/MM2zZBNipeCk3f8NtpdNIKawC43M=
 k8s.io/gengo v0.0.0-20230829151522-9cce18d56c01 h1:pWEwq4Asjm4vjW7vcsmijwBhOr1/shsbSYiWXmNGlks=