Description of problem:

Facing the below type error when starting a pipeline with 1.18.1 build
parameters[3].value must be a `string` type, but the final value was: `[ "\"requirment.txt\"" ]`.
But the param was declared as type array in yaml defenition

• name: cachePatterns
     type: array
     default: ["**requirment.txt"]
  When triggering the pipelinerun with the same yaml file in 1.18, it is working fine

  Steps to Reproduce

1. Install 1.18.1 pipelines operator using index image quay.io/openshift-pipeline/pipelines-index-4.18:1.18
2. Create new project and create the below pipeline and sample pvc
   https://github.com/openshift-pipelines/release-tests/blob/master/testdata/ecosystem/pipelines/cache-stepactions-python.yaml
3. Run the pipeline from UI

Actual results:

Getting type error when starting the pipeline 

Expected results:

Pipeline should start when triggering from UI.
The same pipeline was working in 1.18