[neutron-tempest-plugin] Tag yoga-last

Yoga branch is in unmaintained state now[1]. Tempest and tempest
plugins are branchless which means master version of Tempest and
its plugins is used to test the supported stable branches.

Once any stable branch is moved to unmaintained (previously for
EM) state then, Tempest and its plugins compatible tag[2][3] needs
to be released so that we can keep testing the unmaintained stable
branches with that tag.

Tagging 'yoga-last' as well as a new version with latest hash.

[1] https://review.opendev.org/q/topic:%22yoga-unmaintained%22
[2] https://docs.openstack.org/tempest/latest/stable_branch_support_policy.html
[3] https://docs.openstack.org/tempest/latest/tempest_and_plugins_compatible_version_policy.html

Change-Id: I418c8926df20ee56bd0ebcc93ca92230c55a1aca

deliverables/caracal/neutron-tempest-plugin.yaml

@@ -9,3 +9,8 @@ repository-settings:
     tarball-base: neutron-tempest-plugin
 team: neutron
 type: tempest-plugin
+releases:
+  - version: 2.6.0
+    projects:
+      - repo: openstack/neutron-tempest-plugin
+        hash: 887d41532da1345a91d2e0bcc8a33a52f0b971b2

deliverables/yoga/neutron-tempest-plugin.yaml

@@ -18,3 +18,7 @@ releases:
     projects:
       - repo: openstack/neutron-tempest-plugin
         hash: 6b5360ef1812a732ea4437625de8ab423c9cb009
+  - version: yoga-last
+    projects:
+      - repo: openstack/neutron-tempest-plugin
+        hash: 887d41532da1345a91d2e0bcc8a33a52f0b971b2