Adding sleep after installing operator in e2e test
Adding sleep after installing operator in e2e test

After installation, pod comes in running state soon but TektonConfig
creation takes sometime, which fails the test.
Adding a sleep for a 30 seconds, this can be replaced with probes
and we should check ready status of pod.

Signed-off-by: Shivam Mukhade <330299940dbe3b9a5e12a3de6ca29752465435c4@redhat.com>

tektoncd/operator,tektoncd/operator,tektoncd/operator