Test bundles for focal-wallaby and hirsute-wallaby

These are the test bundles (and any associated changes) for
focal-wallaby and hirsute-wallaby support.

hisute-wallaby test is disabled (moved to dev) due to [1].

[1] https://github.com/juju-solutions/layer-basic/issues/194

Change-Id: I1bb6f7e7431bbe86d12d8b90d234c95cbbd1d8d9

osci.yaml

@@ -6,6 +6,7 @@
       - bionic
       - focal
       - groovy
+      - hirsute
     vars:
       needs_charm_build: true
-      charm_build_name: magpie
+      charm_build_name: magpie

src/tests/bundles/hirsute.yaml

@@ -0,0 +1,5 @@
+series: hirsute
+applications:
+  magpie:
+    num_units: 3
+    charm: magpie

src/tests/tests.yaml

@@ -1,15 +1,23 @@
 charm_name: magpie
+
 gate_bundles:
 - bionic
 - focal
 - groovy
+
+dev_bundles:
+- hirsute
+
 smoke_bundles:
 - focal
+
 target_deploy_status:
   magpie:
     workload-status-message: "icmp ok"
+
 tests:
 - zaza.openstack.charm_tests.magpie.tests.MagpieTest
+
 tests_options:
   force_deploy:
-    - groovy
+    - hirsute