fix(tracetest): fix provisioning importing in configmap

[schoren]

Pull request description

This PR fixes a bug on the chart causing provisioning to not work. It was failing with this message:

2024/09/09 16:17:45 [provisioning] attempting file:  /app/config/provisioning.yaml
2024/09/09 16:17:45 [provisioning] error: cannot unmarshal yaml for provisioning file: [1:1] scalar was used where mapping is expected
    >  1 | |
           ^

The issue was caused by an incorrect usage of a value in the configmap template, causing the provisioning file to look like this:

apiVersion: v1
data:
  config.yaml: |-
    # ...
  provisioning.yaml: |-
    | # this line here was the issue
      ---
      type: DataStore
      spec:
        name: Jaeger
        # Indicates that this datastore is a jaeger instance
        type: jaeger
        # Configures how tracetest connects to jaeger.
        jaeger:
          endpoint: jaeger-query:16685
          tls:
            insecure: true
      ---
      type: PollingProfile
      spec:
        name: Custom Profile
        strategy: periodic
        default: true
        periodic:
          timeout: 30s
          retryDelay: 500ms

An extra | pipe character prependend to the file was causing the provisioner to fail to parse the file, since it's invalid yaml.

This PR fixes the configmap template.

Checklist (choose whats happened)

• breaking change! (describe)
• tested locally
• tested on cluster
• added new dependencies
• updated the docs
• added a test

Breaking changes

Changes

Fixes