Allow configuring the setup job's ttlSecondsAfterFinished value

[schiermike]

What was changed

schema.setup.ttlSecondsAfterFinished is now exposed via values.yaml.

Why?

We run a temporal deployed via ArgoCD. After the current default value of ttlSecondsAfterFinished (1 day), the schema job gets removed and ArgoCD then marks the project as out-of sync. We would like to keep the finished schema job indefinitely.

Checklist

1. How was this tested:

Tested locally by running the helm chart.

2. Any docs updates needed

None that I am aware of.

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[robholland]

Done in #846