Update TestPipelineRunWithServiceAccountNameAndTaskRunSpec to use different podtemplate field

[savitaashture]

Modified TaskRunSpecs to use different podtemplate fields because using HostNetwork: true causes permission issue with downstream projects (like OpenShift)

failed to create task run pod "pipelinerunwithasas-task1-swzq2": pods "pipelinerunwithasas-task1-swzq2-pod-kmdmw" is forbidden: unable to validate against any security context constraint: [provider restricted: .spec.securityContext.hostNetwork: Invalid value: true: Host network is not allowed to be used spec.initContainers[0].securityContext.hostNetwork

And TestPipelineRunWithServiceAccountNameAndTaskRunSpec usecase is to test the emptyness of ServiceAccountName and TaskRunSpec so we can specify any podtemplate fileds to verify the scenario.

Signed-off-by: Savita Ashture [email protected]

/cc @vdemeester

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[piyush-garg]

/lgtm

[piyush-garg]

/kind test

[piyush-garg]

/kind misc

[piyush-garg]

/lgtm

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