Add molecule test for upload_helm_chart 'copy' method

This patch also extends the molecule test to cover the case
where a new version of a chart is uploaded which should result
in a file being removed from the destination.

molecule/upload-helm-chart/converge.yml

@@ -17,3 +17,5 @@
   become: true
   roles:
     - role: test-role
+      vars:
+        test_relative_path : "chart-v1/"

molecule/upload-helm-chart/roles/test-role/meta/main.yml

@@ -1,9 +1,12 @@
 dependencies:
   - role: vexxhost.kubernetes.upload_helm_chart
     vars:
-      upload_helm_chart_src: "./files/chart/"
-      upload_helm_chart_dest: /usr/local/src/chart-1
+      # with rsync
+      upload_helm_chart_src: "{{ test_relative_path }}"
+      upload_helm_chart_dest: /usr/local/src/chart-one
   - role: vexxhost.kubernetes.upload_helm_chart
     vars:
-      upload_helm_chart_src: "../../charts/foo/"
-      upload_helm_chart_dest: /usr/local/src/chart-2
+      # with multi_copy
+      upload_helm_chart_src: "{{ test_relative_path }}"
+      upload_helm_chart_dest: /usr/local/src/chart-two
+      upload_helm_chart_method: copy

molecule/upload-helm-chart/side_effect.yml

@@ -0,0 +1,21 @@
+# Copyright (c) 2023 VEXXHOST, Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License"); you may
+# not use this file except in compliance with the License. You may obtain
+# a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+# License for the specific language governing permissions and limitations
+# under the License.
+
+- name: Side effect
+  hosts: all
+  become: true
+  roles:
+    - role: test-role
+      vars:
+        test_relative_path: "chart-v2/"

molecule/upload-helm-chart/verify.yml

@@ -0,0 +1,30 @@
+- name: Verify
+  hosts: all
+  become: true
+  tasks:
+    - name: Stat file 1
+      ansible.builtin.stat:
+        path: /usr/local/src/chart-one/.gitkeep
+      register: stat_1
+
+    - name: Stat file 2
+      ansible.builtin.stat:
+        path: /usr/local/src/chart-two/.gitkeep
+      register: stat_2
+
+    - name: Stat removed file 1
+      ansible.builtin.stat:
+        path: /usr/local/src/chart-one/file
+      register: stat_r1
+
+    - name: Stat removed file 2
+      ansible.builtin.stat:
+        path: /usr/local/src/chart-two/file
+      register: stat_r2
+
+    - ansible.builtin.assert:
+        that:
+          - stat_1.stat.exists
+          - stat_2.stat.exists
+          - not stat_r1.stat.exists
+          - not stat_r2.stat.exists