[Quality Assurance] 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: I5d908ca519da097372b28ff8cf3198d0ba9aa914

deliverables/train/devstack-plugin-ceph.yaml

@@ -10,3 +10,8 @@ branches:
     name: stable/train
 repository-settings:
   openstack/devstack-plugin-ceph: {}
+releases:
+  - version: train-eol
+    projects:
+      - repo: openstack/devstack-plugin-ceph
+        hash: 921f64aa09193a7224e429950169db5b77fab3d2

deliverables/train/devstack-plugin-container.yaml

@@ -1,7 +1,7 @@
 ---
 launchpad: devstack
 release-model: untagged
-team: 'Quality Assurance'
+team: Quality Assurance
 type: other
 stable-branch-type: tagless
 branches:
@@ -10,3 +10,8 @@ branches:
     name: stable/train
 repository-settings:
   openstack/devstack-plugin-container: {}
+releases:
+  - version: train-eol
+    projects:
+      - repo: openstack/devstack-plugin-container
+        hash: 4b70b7584e12b2b09f34b62fda5e1b5e9075348b

deliverables/train/devstack.yaml

@@ -1,7 +1,7 @@
 ---
 launchpad: devstack
 release-model: untagged
-team: 'Quality Assurance'
+team: Quality Assurance
 type: other
 stable-branch-type: tagless
 branches:
@@ -10,3 +10,8 @@ branches:
     name: stable/train
 repository-settings:
   openstack/devstack: {}
+releases:
+  - version: train-eol
+    projects:
+      - repo: openstack/devstack
+        hash: c0020617f586ed8fb36d7c159642206d5783a825

deliverables/train/grenade.yaml

@@ -1,7 +1,7 @@
 ---
 launchpad: grenade
 release-model: untagged
-team: 'Quality Assurance'
+team: Quality Assurance
 type: other
 stable-branch-type: tagless
 branches:
@@ -10,3 +10,8 @@ branches:
     name: stable/train
 repository-settings:
   openstack/grenade: {}
+releases:
+  - version: train-eol
+    projects:
+      - repo: openstack/grenade
+        hash: 136656308b5532853107d7c70421e9f8e620bf2c