RHOAIENG-18400: chore(konflux): restrict triggering only for the opendatahub-io/notebooks repository

Without this, we'd have a failed pipeline on red-hat-data-services/notebooks fork

> There was an error creating the PipelineRun: *jupyter-minimal-ubi9-python-3-11-on-pull-request-*
>
> creating pipelinerun jupyter-minimal-ubi9-python-3-11-on-pull-request- in namespace rhoai-tenant has failed.
>
> Tekton Controller has reported this error: `the namespace of the provided object does not match the namespace sent on the request`

Author: jiridanek

.tekton/jupyter-minimal-ubi9-python-3-11-pull-request.yaml

@@ -10,7 +10,7 @@ metadata:
     pipelinesascode.tekton.dev/cancel-in-progress: "true"
     pipelinesascode.tekton.dev/max-keep-runs: "3"
     pipelinesascode.tekton.dev/on-cel-expression: event == "pull_request" && target_branch
-      == "main"
+      == "main" && has(body.repository) && body.repository.full_name == "opendatahub-io/notebooks"
   creationTimestamp: null
   labels:
     appstudio.openshift.io/application: notebooks

.tekton/jupyter-minimal-ubi9-python-3-11-push.yaml

@@ -9,7 +9,7 @@ metadata:
     pipelinesascode.tekton.dev/cancel-in-progress: "false"
     pipelinesascode.tekton.dev/max-keep-runs: "3"
     pipelinesascode.tekton.dev/on-cel-expression: event == "push" && target_branch
-      == "main"
+      == "main" && has(body.repository) && body.repository.full_name == "opendatahub-io/notebooks"
   creationTimestamp: null
   labels:
     appstudio.openshift.io/application: notebooks