zuul: Increase timeout for c9s-fips job

tempest-centos9-stream-fips job has a long history of runs resulting to
TIMED_OUT [1]

Since the job defines some extra tasks for enabling FIPS, we hardly hit
the default timeout of 2 hours as shown in every failing build log.
If we really want this job, then we need to give it some extra space as
for the moment, apart from wasting CI resources into continuously failing
runs, we don't see any interest in it.

[1] https://zuul.openstack.org/builds?job_name=tempest-centos9-stream-fips

Change-Id: I5b04d69f74854725e0c11abe58e936fc6d18d183
diff --git a/zuul.d/integrated-gate.yaml b/zuul.d/integrated-gate.yaml
index 121e04d..3ce4f25 100644
--- a/zuul.d/integrated-gate.yaml
+++ b/zuul.d/integrated-gate.yaml
@@ -324,6 +324,7 @@
     parent: devstack-tempest
     description: |
       Integration testing for a FIPS enabled Centos 9 system
+    timeout: 10800
     nodeset: devstack-single-node-centos-9-stream
     pre-run: playbooks/enable-fips.yaml
     vars: