Description of problem:

Running RHTAP e2e's out of https://github.com/redhat-appstudio/infra-deployments/pull/1847 after fixing some unrelated issues in the test run https://prow.ci.openshift.org/view/gs/origin-ci-test/pr-logs/pull/redhat-appstudio_infra-deployments/1847/pull-ci-redhat-appstudio-infra-deployments-main-appstudio-e2e-tests/1662050804057509888 that test failure in https://github.com/redhat-appstudio/e2e-tests/blob/main/tests/mvp-demo/mvp-demo.go was caused by the SIGSEGV reported in https://gcsweb-ci.apps.ci.l2s4.p1.openshiftapps.com/gcs/origin-ci-test/pr-logs/pull/redhat-appstudio_infra-deployments/1847/pull-ci-redhat-appstudio-infra-deployments-main-appstudio-e2e-tests/1662050804057509888/artifacts/appstudio-e2e-tests/redhat-appstudio-hypershift-gather/artifacts/pods/pipelines-as-code_pipelines-as-code-controller-5d8d47696b-78s54_pac-controller_previous.log

panic: runtime error: invalid memory address or nil pointer dereference [signal SIGSEGV: segmentation violation code=0x1 addr=0x30 pc=0x1c875f7] goroutine 580 [running]: github.com/openshift-pipelines/pipelines-as-code/pkg/pipelineascode.(*PacRun).startPR(0xc0000beaf0, {0x26775d8, 0xc000595f20}, {0xc0009f8d80?, 0xc000180b00?, 0xc00058f470?}) /go/src/github.com/openshift-pipelines/pipelines-as-code/pkg/pipelineascode/pipelineascode.go:192 +0xd57 github.com/openshift-pipelines/pipelines-as-code/pkg/pipelineascode.(*PacRun).Run.func1({0xc0009f8d80?, 0xc000180b00?, 0xc00058f470?}) /go/src/github.com/openshift-pipelines/pipelines-as-code/pkg/pipelineascode/pipelineascode.go:76 +0xe5 created by github.com/openshift-pipelines/pipelines-as-code/pkg/pipelineascode.(*PacRun).Run /go/src/github.com/openshift-pipelines/pipelines-as-code/pkg/pipelineascode/pipelineascode.go:74 +0x5bf

Prerequisites (if any, like setup, operators/versions):

Steps to Reproduce

 # set up RHTAP and run the e2e's

1. I set up a slack thread https://redhat-internal.slack.com/archives/C02FTKEMBU1/p1685111027677329 with RHTAP QE to see if they can help produce a local reproducer from the test

Also see https://redhat-internal.slack.com/archives/CG5GV6CJD/p1685108707222059 for discussion

Actual results:

Expected results:

Reproducibility (Always/Intermittent/Only Once):

Acceptance criteria: 

Definition of Done:

Build Details:

Additional info (Such as Logs, Screenshots, etc):

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