Cleanup sample_plugin during helm tests (#75)

molecule/default/roles/helm/tasks/tests_helm_plugin.yml

@@ -77,6 +77,7 @@
       - not uninstall_env.changed
 
 # https://github.com/ansible-collections/community.kubernetes/issues/399
+- block:
     - name: Copy required plugin files
       copy:
         src: "files/sample_plugin"
@@ -108,3 +109,10 @@
       assert:
         that:
           - plugin_version == "0.0.1"
+  always:
+    - name: Uninstall sample_plugin
+      helm_plugin:
+        binary_path: "{{ helm_binary }}"
+        state: absent
+        plugin_name: sample_plugin
+      ignore_errors: yes