Airship script fix

This PS fixes tools/airship script that uses deprecated distutils python
module. The deprecation message  "distutils Version classes are
deprecated" breaks tools/airship script logic.

Change-Id: I7aa8b9ce0d7af26bf82e6e2a7f2fa19b5169aff5

tools/airship

@@ -70,8 +70,8 @@ manifests_lookup(){
   RESULT=$(python3 -c "
 
 import yaml,sys
-from distutils.version import StrictVersion
-if StrictVersion(yaml.__version__) < StrictVersion('5.1'):
+from packaging import version
+if version.Version(yaml.__version__) < version.Version('5.1'):
   y = yaml.load_all(open('$file'))
 else:
   y = yaml.load_all(open('$file'), Loader=yaml.FullLoader)

tools/gate/playbooks/initial-setup.yaml

@@ -19,3 +19,12 @@
     - ensure-docker
     - ensure-python
     - ensure-pip
+
+  tasks:
+    - name: Install Packaging python module for tools/airship
+      block:
+        - pip:
+            name: packaging
+            version: 23.1
+            executable: pip3
+      become: True