fix(deps): update module sigs.k8s.io/cluster-api to v1.7.3 (#288)

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

Author: renovate[bot]

go.mod

@@ -18,7 +18,7 @@ require (
 	k8s.io/apimachinery v0.30.1
 	k8s.io/client-go v0.30.1
 	k8s.io/klog/v2 v2.120.1
-	sigs.k8s.io/cluster-api v1.7.2
+	sigs.k8s.io/cluster-api v1.7.3
 	sigs.k8s.io/controller-runtime v0.18.4
 	sigs.k8s.io/yaml v1.4.0
 )

go.sum

@@ -255,8 +255,8 @@ k8s.io/kube-openapi v0.0.0-20240228011516-70dd3763d340 h1:BZqlfIlq5YbRMFko6/PM7F
 k8s.io/kube-openapi v0.0.0-20240228011516-70dd3763d340/go.mod h1:yD4MZYeKMBwQKVht279WycxKyM84kkAx2DPrTXaeb98=
 k8s.io/utils v0.0.0-20231127182322-b307cd553661 h1:FepOBzJ0GXm8t0su67ln2wAZjbQ6RxQGZDnzuLcrUTI=
 k8s.io/utils v0.0.0-20231127182322-b307cd553661/go.mod h1:OLgZIPagt7ERELqWJFomSt595RzquPNLL48iOWgYOg0=
-sigs.k8s.io/cluster-api v1.7.2 h1:bRE8zoao7ajuLC0HijqfZVcubKQCPlZ04HMgcA53FGE=
-sigs.k8s.io/cluster-api v1.7.2/go.mod h1:V9ZhKLvQtsDODwjXOKgbitjyCmC71yMBwDcMyNNIov0=
+sigs.k8s.io/cluster-api v1.7.3 h1:DsSRxsA+18jxLqPAo29abZ9kOPK1/xwhSuQb/MROzSs=
+sigs.k8s.io/cluster-api v1.7.3/go.mod h1:V9ZhKLvQtsDODwjXOKgbitjyCmC71yMBwDcMyNNIov0=
 sigs.k8s.io/controller-runtime v0.18.4 h1:87+guW1zhvuPLh1PHybKdYFLU0YJp4FhJRmiHvm5BZw=
 sigs.k8s.io/controller-runtime v0.18.4/go.mod h1:TVoGrfdpbA9VRFaRnKgk9P5/atA0pMwq+f+msb9M8Sg=
 sigs.k8s.io/json v0.0.0-20221116044647-bc3834ca7abd h1:EDPBXCAspyGV4jQlpZSudPeMmr1bNJefnuqLsRAsHZo=