Sporadic test failures

[lukasfrank]

Describe the bug
The tests in IronCore are failing here and there:
https://github.com/ironcore-dev/ironcore/actions/runs/12231062783/job/34113407551?pr=1165

  [FAILED] Unexpected error:
      <*fmt.wrapError | 0xc0000d2160>: 
      error patching network to be owned by network interface: error patching object to be controlled: networks.networking.ironcore.dev "net-6fdfb85b7c-pq4gb" not found
      {
          msg: "error patching network to be owned by network interface: error patching object to be controlled: networks.networking.ironcore.dev \"net-6fdfb85b7c-pq4gb\" not found",
          err: <*fmt.wrapError | 0xc0000d2140>{
              msg: "error patching object to be controlled: networks.networking.ironcore.dev \"net-6fdfb85b7c-pq4gb\" not found",
              err: <*errors.StatusError | 0xc000546320>{
                  ErrStatus: {
                      TypeMeta: {Kind: "", APIVersion: ""},
                      ListMeta: {
                          SelfLink: "",
                          ResourceVersion: "",
                          Continue: "",
                          RemainingItemCount: nil,
                      },
                      Status: "Failure",
                      Message: "networks.networking.ironcore.dev \"net-6fdfb85b7c-pq4gb\" not found",
                      Reason: "NotFound",
                      Details: {
                          Name: "net-6fdfb85b7c-pq4gb",
                          Group: "networking.ironcore.dev",
                          Kind: "networks",
                          UID: "",
                          Causes: nil,
                          RetryAfterSeconds: 0,
                      },
                      Code: 404,
                  },
              },
          },
      }
  occurred
  In [It] at: /home/runner/work/ironcore/ironcore/broker/machinebroker/server/machine_networkinterface_attach_test.go:169 @ 12/09/24 07:43:56.834

or

  [FAILED] Unexpected error:
      <*fmt.wrapError | 0xc0000756c0>: 
      error getting ironcore volume 233604757774fa5a2b2daf7af3311782f06f3bf9db543d0fe065feef9d868ae: failed to get restmapping: no matches for kind "Volume" in group "storage.ironcore.dev"
      {
          msg: "error getting ironcore volume 233604757774fa5a2b2daf7af3311782f06f3bf9db543d0fe065feef9d868ae: failed to get restmapping: no matches for kind \"Volume\" in group \"storage.ironcore.dev\"",
          err: <*fmt.wrapError | 0xc0000756a0>{
              msg: "failed to get restmapping: no matches for kind \"Volume\" in group \"storage.ironcore.dev\"",
              err: <*meta.NoKindMatchError | 0xc00017c980>{
                  GroupKind: {
                      Group: "storage.ironcore.dev",
                      Kind: "Volume",
                  },
                  SearchedVersions: nil,
              },
          },
      }
  occurred
  In [It] at: /home/runner/work/ironcore/ironcore/broker/volumebroker/server/volume_expand_test.go:71 @ 12/09/24 09:16:20.422