[watcher] Transition Train to End of Life

With the new resolution '2023-07-24 Unmaintained status replaces
Extended Maintenance' [1] the last 3 EM branches (Xena, Wallaby,
Victoria) will transition to Unmaintained, but older branches (Ussuri,
Train) should move to End of Life unless someone steps up as maintainer
of this branch for this project.

To signal this, please add a -1 for this patch if you or the team want
to keep this branch open for further maintenance.
If there is no response from anyone within a reasonable time frame,
then PTLs/release liaisons will be asked to confirm the EOL transition
with their +1.

[1] https://governance.openstack.org/tc/resolutions/20230724-unmaintained-branches.html

Change-Id: Ie248b08b1cc9ae0ee5be8b8459c026d1f788bd80

deliverables/train/python-watcherclient.yaml

@@ -19,6 +19,10 @@ releases:
     projects:
       - repo: openstack/python-watcherclient
         hash: 62fdb73dae226ae812c756e98969f8db215b901a
+  - version: train-eol
+    projects:
+      - repo: openstack/python-watcherclient
+        hash: 5ab4ac10a2803af4e088f617714bca0ed5caeeaf
 branches:
   - location: 2.4.0
     name: stable/train

deliverables/train/watcher-dashboard.yaml

@@ -20,6 +20,10 @@ releases:
     projects:
       - repo: openstack/watcher-dashboard
         hash: e0405ceff6d3499e8f3786df9d678ffaab6ad95f
+  - version: train-eol
+    projects:
+      - repo: openstack/watcher-dashboard
+        hash: 0575a4e593f6a225ca916eff2030bf6f77df999e
 branches:
   - name: stable/train
     location: 2.0.0.0rc1

deliverables/train/watcher.yaml

@@ -46,6 +46,10 @@ releases:
     projects:
       - repo: openstack/watcher
         hash: 70a24cb009e3318c55ca94727f5f6325dc3c8db6
+  - version: train-eol
+    projects:
+      - repo: openstack/watcher
+        hash: 837e6589994407131b837a2af2c09c1748f4e194
 branches:
   - name: stable/train
     location: 3.0.0.0rc1