test(e2e): tighten event-driven backstops

- kafka.bats: use $name in the kafkas existence backstop, matching the
  variable used in the kubectl wait below it (consistency with the rest
  of this PR's backstops).
- e2e-install-cozystack.bats: the Tenant→HelmRelease materialisation is
  asynchronous (cozystack-controller observes the Tenant CR and creates
  the HR), so guard hr/tenant-test with the same existence backstop
  pattern used elsewhere.

Signed-off-by: Myasnikov Daniil <myasnikovdaniil2001@gmail.com>

hack/e2e-apps/kafka.bats

@@ -43,7 +43,7 @@ EOF
   # kicks in (kubectl wait errors immediately if the object does not exist yet).
   timeout 60 sh -ec "until kubectl -n tenant-test get hr kafka-$name >/dev/null 2>&1; do sleep 2; done"
   kubectl -n tenant-test wait hr kafka-$name --timeout=30s --for=condition=ready
-  timeout 60 sh -ec "until kubectl -n tenant-test get kafkas test >/dev/null 2>&1; do sleep 2; done"
+  timeout 60 sh -ec "until kubectl -n tenant-test get kafkas $name >/dev/null 2>&1; do sleep 2; done"
   kubectl wait kafkas -n tenant-test test --timeout=300s --for=condition=ready
   timeout 60 sh -ec "until kubectl -n tenant-test get pvc data-kafka-$name-zookeeper-0; do sleep 10; done"
   kubectl -n tenant-test wait pvc data-kafka-$name-zookeeper-0 --timeout=50s --for=jsonpath='{.status.phase}'=Bound

hack/e2e-install-cozystack.bats

@@ -285,6 +285,7 @@ spec:
     storage: "100Gi"
   seaweedfs: false
 EOF
+  timeout 60 sh -ec 'until kubectl get hr/tenant-test -n tenant-root >/dev/null 2>&1; do sleep 2; done'
   kubectl wait hr/tenant-test -n tenant-root --timeout=1m --for=condition=ready
   timeout 60 sh -ec 'until kubectl get namespace tenant-test >/dev/null 2>&1; do sleep 2; done'
   kubectl wait namespace tenant-test --timeout=20s --for=jsonpath='{.status.phase}'=Active