Increase the timeout for arm64 jobs

The original timeout is 3660 for both openstack-tox-py38-arm64 and
openstack-tox-py39-arm64, change it to 4800.

Related-Bug: #1949476
Related-Bug: #1949704
Change-Id: I2b0d2c8b60af0ab7398f38151ff0f62e451e7e3e
(cherry picked from commit 4eada8932c)
Conflicts: zuul.d/project.yaml

zuul.d/job-templates.yaml

@@ -26,6 +26,14 @@
         - openstack-tox-cover:  # from openstack-cover-jobs template
             timeout: 4800
             irrelevant-files:  *irrelevant-files
+    check-arm64:
+      jobs:
+        - openstack-tox-py38-arm64: # from openstack-python3-xena-jobs-arm64 template
+            timeout: 4800
+            irrelevant-files:  *irrelevant-files
+        - openstack-tox-py39-arm64: # from openstack-python3-xena-jobs-arm64 template
+            timeout: 4800
+            irrelevant-files:  *irrelevant-files
     gate:
       jobs:
         - openstack-tox-py36:  # from openstack-python3-xena-jobs template