fix: add endpointslice replace (#18141)

Since #17491 I got a bunch of weird errors in Goland, along with the
error message below:

```
go: k8s.io/endpointslice@v0.0.0: invalid version: unknown revision v0.0.0
```

Adding an endpointslice alias fixes that.

Signed-off-by: Blake Pettersson <blake.pettersson@gmail.com>

go.mod

@@ -325,6 +325,7 @@ replace (
 	k8s.io/cri-api => k8s.io/cri-api v0.29.2
 	k8s.io/csi-translation-lib => k8s.io/csi-translation-lib v0.29.2
 	k8s.io/dynamic-resource-allocation => k8s.io/dynamic-resource-allocation v0.29.2
+	k8s.io/endpointslice => k8s.io/endpointslice v0.29.2
 	k8s.io/kms => k8s.io/kms v0.29.2
 	k8s.io/kube-aggregator => k8s.io/kube-aggregator v0.29.2
 	k8s.io/kube-controller-manager => k8s.io/kube-controller-manager v0.29.2