Re-enable zuultrigger test

This gets both running again, but the second fails because of a
behavior change in v3 which should be addressed separately.

Story: 2000773
Task: 3422

Change-Id: I3d0e7268304e97fa611f70706e15212952aa3c62
diff --git a/tests/fixtures/config/zuultrigger/project-change-merged/git/common-config/zuul.yaml b/tests/fixtures/config/zuultrigger/project-change-merged/git/common-config/zuul.yaml
new file mode 100644
index 0000000..eb6bf1c
--- /dev/null
+++ b/tests/fixtures/config/zuultrigger/project-change-merged/git/common-config/zuul.yaml
@@ -0,0 +1,65 @@
+- pipeline:
+    name: check
+    manager: independent
+    source: gerrit
+    trigger:
+      gerrit:
+        - event: patchset-created
+    success:
+      gerrit:
+        verified: 1
+    failure:
+      gerrit:
+        verified: -1
+
+- pipeline:
+    name: gate
+    manager: dependent
+    failure-message: Build failed.  For information on how to proceed, see http://wiki.example.org/Test_Failures
+    source: gerrit
+    trigger:
+      gerrit:
+        - event: comment-added
+          approval:
+            - approved: 1
+    success:
+      gerrit:
+        verified: 2
+        submit: true
+    failure:
+      gerrit:
+        verified: -2
+    start:
+      gerrit:
+        verified: 0
+    precedence: high
+
+- pipeline:
+    name: merge-check
+    manager: independent
+    source: gerrit
+    ignore-dependencies: true
+    trigger:
+      zuul:
+        - event: project-change-merged
+    merge-failure:
+      gerrit:
+        verified: -1
+
+- job:
+    name: project-check
+
+- job:
+    name: project-gate
+
+- project:
+    name: org/project
+    check:
+      jobs:
+        - project-check
+    gate:
+      jobs:
+        - project-gate
+    merge-check:
+      jobs:
+        - noop
diff --git a/tests/fixtures/config/zuultrigger/project-change-merged/git/org_project/README b/tests/fixtures/config/zuultrigger/project-change-merged/git/org_project/README
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/tests/fixtures/config/zuultrigger/project-change-merged/git/org_project/README
diff --git a/tests/fixtures/config/zuultrigger/project-change-merged/main.yaml b/tests/fixtures/config/zuultrigger/project-change-merged/main.yaml
new file mode 100644
index 0000000..a22ed5c
--- /dev/null
+++ b/tests/fixtures/config/zuultrigger/project-change-merged/main.yaml
@@ -0,0 +1,6 @@
+- tenant:
+    name: tenant-one
+    source:
+      gerrit:
+        config-repos:
+          - common-config