triggerbinding stopped supporting multiline arguments

[dmitry-mightydevops]

Expected Behavior

Triggerbinding to pass multiline argument into downstream template/task/pipeline
regression of this one?
#772

Actual Behavior

Fails with error:

{"severity":"info","timestamp":"2024-12-10T04:10:01.664Z","logger":"eventlistener","caller":"sink/sink.go:442","message":"ResolvedParams : [{Name:sdk_config_file Value:test1\ntest2\n}]","commit":"616cae1-dirty","eventlistener":"el","namespace":"ci","/triggers-eventid":"c9f6439a-3395-4867-85be-92d2f5485278","eventlistenerUID":"31e81dbf-ee50-4acb-85c8-a81d0b6005ab","/triggers-eventid":"c9f6439a-3395-4867-85be-92d2f5485278","/trigger":"sdk-trigger"}
{"severity":"error","timestamp":"2024-12-10T04:10:01.664Z","logger":"eventlistener","caller":"sink/sink.go:606","message":"problem creating obj: &errors.errorString{s:\"couldn't unmarshal json from the TriggerTemplate: invalid character '\\\\n' in string literal\"}","commit":"616cae1-dirty","eventlistener":"el","namespace":"ci","/triggers-eventid":"c9f6439a-3395-4867-85be-92d2f5485278","eventlistenerUID":"31e81dbf-ee50-4acb-85c8-a81d0b6005ab","/triggers-eventid":"c9f6439a-3395-4867-85be-92d2f5485278","/trigger":"sdk-trigger"}
{"severity":"error","timestamp":"2024-12-10T04:10:01.664Z","logger":"eventlistener","caller":"sink/sink.go:446","message":"couldn't unmarshal json from the TriggerTemplate: invalid character '\\n' in string literal","commit":"616cae1-dirty","eventlistener":"el","namespace":"ci","/triggers-eventid":"c9f6439a-3395-4867-85be-92d2f5485278","eventlistenerUID":"31e81dbf-ee50-4acb-85c8-a81d0b6005ab","/triggers-eventid":"c9f6439a-3395-4867-85be-92d2f5485278","/trigger":"sdk-trigger"}

Steps to Reproduce the Problem

apiVersion: triggers.tekton.dev/v1beta1
kind: Trigger
metadata:
  labels:
    builder: tekton
    pipeline: backend-build-pipeline
  name: sdk-trigger
  namespace: ci
spec:
  bindings:    
    - name: sdk_config_file
      value: |
        test1
        test2
  template:
    spec:
      params:        
        - name: sdk_config_file        
      resourcetemplates:
        - apiVersion: tekton.dev/v1beta1
          kind: TaskRun
          metadata:
            generateName: cel-trig-
          spec:
            taskSpec:
              steps:
                - image: ubuntu
                  script: |
                    #!/usr/bin/env bash                    
                    echo "sdk_config_file:"
                    echo $(tt.params.sdk_config_file) | tee test.txt
                    cat test.txt

Additional Info

• Kubernetes version:

➜ k version                                
Client Version: v1.30.0
Kustomize Version: v5.0.4-0.20230601165947-6ce0bf390ce3
Server Version: v1.30.6-eks-7f9249a

• Tekton Pipeline version:

➜ tkn version                                                         
Client version: 0.38.0
Pipeline version: v0.64.0
Triggers version: v0.29.1
Dashboard version: v0.51.0