[magnum] release magnum 16.0.2

Bugfixes include:

$ git log --oneline --no-merges  16.0.1..883b40b5b0ecfc5f78758143c0d3c754458f12b7
883b40b5 Move the chmod function before the write and flush functions to prevent sensitive information leakage.
36cf1c85 Missing load balancer health monitors fix

Change-Id: I882302bb49610e669d2303f1c156a0c78b20a202

deliverables/antelope/magnum.yaml

@@ -22,6 +22,10 @@ releases:
     projects:
       - repo: openstack/magnum
         hash: f2910697deae132eae48b85de174f180c279ca18
+  - version: 16.0.2
+    projects:
+      - repo: openstack/magnum
+        hash: 883b40b5b0ecfc5f78758143c0d3c754458f12b7
 branches:
   - name: stable/2023.1
     location: 16.0.0.0rc1