Error when Knative is enabled: `error parsing STDIN: invalid Yaml document separator: null`

[gnarea]

Run container-tools/kind-action@v2
  with:
    cluster_name: default
    kubectl_version: v1.23.4
    knative_serving: v1.9.0
Creating registry "kind-registry" on port 5000 from image "registry:2"...
Unable to find image 'registry:2' locally
2: Pulling from library/registry
ef5531b6e74e: Already exists
a52704366974: Pulling fs layer
dda5a8ba6f46: Pulling fs layer
eb9a2e8a8f76: Pulling fs layer
25bb6825962e: Pulling fs layer
25bb6825962e: Waiting
a52704366974: Verifying Checksum
eb9a2e8a8f76: Verifying Checksum
eb9a2e8a8f76: Download complete
dda5a8ba6f46: Verifying Checksum
dda5a8ba6f46: Download complete
25bb6825962e: Verifying Checksum
25bb6825962e: Download complete
a52704366974: Pull complete
dda5a8ba6f46: Pull complete
eb9a2e8a8f76: Pull complete
25bb6825962e: Pull complete
Digest: sha256:3f71055ad7c41728e381190fee5c4cf9b8f7725839dcf5c0fe3e5e20dc5db1fa
Status: Downloaded newer image for registry:2
127.0.0.1 kind-registry
Connecting registry to the "kind" network...
6f11b0e8bc92e119c845abfb86f4e00f92d2fe81e90e8de6ccc1e5ebe5465e74
Installing kind...
Installing kubectl...
Creating kind cluster...
Creating cluster "default" ...
 • Ensuring node image (kindest/node:v1.21.1) 🖼  ...
 ✓ Ensuring node image (kindest/node:v1.21.1) 🖼
 • Preparing nodes 📦   ...
 ✓ Preparing nodes 📦 
 • Writing configuration 📜  ...
 ✓ Writing configuration 📜
 • Starting control-plane 🕹️  ...
 ✓ Starting control-plane 🕹️
 • Installing CNI 🔌  ...
 ✓ Installing CNI 🔌
 • Installing StorageClass 💾  ...
 ✓ Installing StorageClass 💾
 • Waiting ≤ 1m0s for control-plane = Ready ⏳  ...
 ✓ Waiting ≤ 1m0s for control-plane = Ready ⏳
 • Ready after 34s 💚
customresourcedefinition.apiextensions.k8s.io/ingresses.networking.internal.knative.dev unchanged
customresourcedefinition.apiextensions.k8s.io/metrics.autoscaling.internal.knative.dev unchanged
customresourcedefinition.apiextensions.k8s.io/podautoscalers.autoscaling.internal.knative.dev unchanged
customresourcedefinition.apiextensions.k8s.io/revisions.serving.knative.dev unchanged
customresourcedefinition.apiextensions.k8s.io/routes.serving.knative.dev unchanged
customresourcedefinition.apiextensions.k8s.io/serverlessservices.networking.internal.knative.dev unchanged
customresourcedefinition.apiextensions.k8s.io/services.serving.knative.dev unchanged
secret/serving-certs-ctrl-ca created
secret/knative-serving-certs created
image.caching.internal.knative.dev/queue-proxy created
configmap/config-autoscaler created
configmap/config-defaults created
configmap/config-deployment created
configmap/config-domain created
configmap/config-features created
configmap/config-gc created
configmap/config-leader-election created
configmap/config-logging created
configmap/config-network created
configmap/config-observability created
configmap/config-tracing created
poddisruptionbudget.policy/activator-pdb created
deployment.apps/activator created
service/activator-service created
deployment.apps/autoscaler created
service/autoscaler created
deployment.apps/controller created
service/controller created
deployment.apps/domain-mapping created
deployment.apps/domainmapping-webhook created
service/domainmapping-webhook created
poddisruptionbudget.policy/webhook-pdb created
deployment.apps/webhook created
service/webhook created
validatingwebhookconfiguration.admissionregistration.k8s.io/config.webhook.serving.knative.dev created
mutatingwebhookconfiguration.admissionregistration.k8s.io/webhook.serving.knative.dev created
mutatingwebhookconfiguration.admissionregistration.k8s.io/webhook.domainmapping.serving.knative.dev created
secret/domainmapping-webhook-certs created
validatingwebhookconfiguration.admissionregistration.k8s.io/validation.webhook.domainmapping.serving.knative.dev created
unable to recognize "STDIN": no matches for kind "HorizontalPodAutoscaler" in version "autoscaling/v2"
unable to recognize "STDIN": no matches for kind "HorizontalPodAutoscaler" in version "autoscaling/v2"
error parsing STDIN: invalid Yaml document separator: null
validatingwebhookconfiguration.admissionregistration.k8s.io/validation.webhook.serving.knative.dev created