chore(updates.jenkins.io): use new mirrorbits-parent helm chart

[lemeurherve]

This PR use the new mirrorbits-parent helm chart instead of the mirrorbits one to deploy updates.jenkins.io

Content of the secret:

mirrorbits-lite:
    geoipupdate:
        account_id: THE_ID
        license_key: THE_KEY
    repository:
        secrets:
            enabled: true
            data:
                azurestorageaccountkey: THE_KEY
                azurestorageaccountname: THE_NAME
    conf: |
        Repository: /srv/repo
        Templates: /usr/share/mirrorbits/templates
        GeoipDatabasePath: /usr/share/GeoIP/
        Gzip: true
        ListenAddress: :8080
        #RPCListenAddress: localhost:3390
        RedisAddress: updates-jenkins-io.redis.cache.windows.net:6379
        # [...snip...]

Ref: jenkins-infra/helpdesk#2649

[lemeurherve]

Unrelated updatecli error 🤔

[dduportal]

Unrelated updatecli error 🤔

If you look at the error associated with checkPodTemplate :

WARNING: current yaml key is "spec.containers[0].name" and should be updated to "$.spec.containers[0].name"
 ✗ key "$.spec.containers[0].name", in YAML file "PodTemplates.yaml", is incorrectly set to "\"jnlp\"" and should be "jnlp"

I believe if you solve the warning, then updatecli will behave (unrelated to your PR)

[lemeurherve]

Updatecli now fails only on mirrorbits-parent target (expected as not yet on main branch), merging.