deps(deps): update module sigs.k8s.io/cluster-api to v1.8.4

Signed-off-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

go.mod

@@ -17,7 +17,7 @@ require (
 	k8s.io/apimachinery v0.30.3
 	k8s.io/client-go v0.30.3
 	k8s.io/klog/v2 v2.130.1
-	sigs.k8s.io/cluster-api v1.8.3
+	sigs.k8s.io/cluster-api v1.8.4
 	sigs.k8s.io/controller-runtime v0.18.5
 	sigs.k8s.io/yaml v1.4.0
 )

go.sum

@@ -917,8 +917,8 @@ k8s.io/utils v0.0.0-20240502163921-fe8a2dddb1d0 h1:jgGTlFYnhF1PM1Ax/lAlxUPE+KfCI
 k8s.io/utils v0.0.0-20240502163921-fe8a2dddb1d0/go.mod h1:OLgZIPagt7ERELqWJFomSt595RzquPNLL48iOWgYOg0=
 sigs.k8s.io/apiserver-network-proxy/konnectivity-client v0.30.0 h1:Tc9rS7JJoZ9sl3OpL4842oIk6lH7gWBb0JOmJ0ute7M=
 sigs.k8s.io/apiserver-network-proxy/konnectivity-client v0.30.0/go.mod h1:1ewhL9l1gkPcU/IU/6rFYfikf+7Y5imWv7ARVbBOzNs=
-sigs.k8s.io/cluster-api v1.8.3 h1:N6i25rF5QMadwVg2UPfuO6CzmNXjqnF2r1MAO+kcsro=
-sigs.k8s.io/cluster-api v1.8.3/go.mod h1:pXv5LqLxuIbhGIXykyNKiJh+KrLweSBajVHHitPLyoY=
+sigs.k8s.io/cluster-api v1.8.4 h1:jBKQH1H/HUdUFk8T6qDzIxZJfWw1F5ZP0ZpYQJDmTHs=
+sigs.k8s.io/cluster-api v1.8.4/go.mod h1:pXv5LqLxuIbhGIXykyNKiJh+KrLweSBajVHHitPLyoY=
 sigs.k8s.io/controller-runtime v0.18.5 h1:nTHio/W+Q4aBlQMgbnC5hZb4IjIidyrizMai9P6n4Rk=
 sigs.k8s.io/controller-runtime v0.18.5/go.mod h1:TVoGrfdpbA9VRFaRnKgk9P5/atA0pMwq+f+msb9M8Sg=
 sigs.k8s.io/json v0.0.0-20221116044647-bc3834ca7abd h1:EDPBXCAspyGV4jQlpZSudPeMmr1bNJefnuqLsRAsHZo=