Matrix tekton pipelines fail, complaining about a dead feature flag.

[tomalexander]

I am using the tekton engine with lighthouse. I recently tried adding a matrix to my PipelineRun but I am getting this error from the lighthouse-webhooks:

failed to load source for postsubmit build-organic: failed to unmarshal YAML file pipeline-build-organic.yaml in repo talexander/organic with sha 1c022db2b9b9a4b1701cfdafb788ec6992c2cf0b: failed to validate generated PipelineRun: expected 0 <= 9 <= 0: spec.pipelineSpec.finally[2].matrix\nmatrix requires "embedded-status" feature gate to be "minimal" but it is "full": 

But the embedded-status feature flag was removed back in January of 2023: https://tekton.dev/docs/pipelines/deprecations/

I am using lighthouse v1.16.5 and tekton operator 0.70.0.