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

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

go.mod

@@ -15,7 +15,7 @@ require (
  k8s.io/api v0.30.1
  k8s.io/apimachinery v0.30.1
  k8s.io/client-go v0.30.1
- sigs.k8s.io/cluster-api v1.7.2
+ sigs.k8s.io/cluster-api v1.7.3
  sigs.k8s.io/controller-runtime v0.18.4
 )
 

go.sum

@@ -387,8 +387,8 @@ k8s.io/utils v0.0.0-20231127182322-b307cd553661 h1:FepOBzJ0GXm8t0su67ln2wAZjbQ6R
 k8s.io/utils v0.0.0-20231127182322-b307cd553661/go.mod h1:OLgZIPagt7ERELqWJFomSt595RzquPNLL48iOWgYOg0=
 launchpad.net/gocheck v0.0.0-20140225173054-000000000087/go.mod h1:hj7XX3B/0A+80Vse0e+BUHsHMTEhd0O4cpUHr/e/BUM=
 launchpad.net/xmlpath v0.0.0-20130614043138-000000000004/go.mod h1:vqyExLOM3qBx7mvYRkoxjSCF945s0mbe7YynlKYXtsA=
-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=