xactfetch: Skip wait for manual runs

When the `xactfetch` CronJob is triggered manually, it will now skip
the `sleep` step.  Presumably, whoever triggered it wants the script
to run _right now_, probably to diagnose a problem.

xactfetch/xactfetch.yaml

@@ -28,7 +28,7 @@ spec:
             command:
             - sh
             - -c
-            - sleep $((RANDOM % 3600))
+            - case ${HOSTNAME} in *-manual-*);; *)sleep $((RANDOM % 3600));; esac
             securityContext:
               readOnlyRootFilesystem: true
               runAsGroup: 999