Expected Behavior

The informer should have only pods with label app.kubernetes.io/managed-by=tekton-pipelines or the value of the config default-managed-by-label-value

https://github.com/tektoncd/pipeline/blob/main/config/config-defaults.yaml#L52

Actual Behavior

The informer has too many pods in his memory.

Steps to Reproduce the Problem

1. Modify the code of the pipeline controller to display the number of pods in the informer

go func() {
	for {
		pods, err := podInformer.Lister().List(labels.Everything())
		if err != nil {
			logger.Fatal(err)
		}
		logger.Error(len(pods))
		time.Sleep(time.Second)
	}
}()

2. Create a TaskRun
3. Create a pod with a label app.kubernetes.io/managed-by: not-tekton-at-all

Additional Info

The filteredinformerfactory is configured here: https://github.com/tektoncd/pipeline/blob/64aff5edcbb7e6fdf22e1270f60ee37085a8d934/cmd/controller/main.go#L101 The podinformer is configured here: https://github.com/tektoncd/pipeline/blob/64aff5edcbb7e6fdf22e1270f60ee37085a8d934/pkg/reconciler/taskrun/controller.go#L53