Add temporary noop job

There is a bug that causes Zuul to get stuck if a noop job runs
on a queue item with a repo state; until that is fixed, use a
"real" noop job instead of the built-in one.

Change-Id: I64dafd7daf57d8cceea6b074b62e7cffaa5afc0c

playbooks/noop.yaml

@@ -0,0 +1,2 @@
+- hosts: localhost
+  tasks: []

zuul.d/jobs.yaml

@@ -1,3 +1,12 @@
+- job:
+    name: opendev-zuul-jobs-noop
+    description: |
+      A temporary noop job until we can use the built-in one
+
+      (The built-in noop job currently has a bug if a repo-state call
+      is involved.)
+    run: playbooks/noop.yaml
+
 - job:
     name: opendev-build-diskimage-base
     description: |

zuul.d/project.yaml

@@ -1,11 +1,11 @@
 - project:
     check:
       jobs:
-        - noop
+        - opendev-zuul-jobs-noop
         - opendev-build-diskimage-debian-bullseye
     gate:
       jobs:
-        - noop
+        - opendev-zuul-jobs-noop
         - opendev-build-diskimage-debian-bullseye:
             secrets:
               - name: image_upload_secret