Print annotation and label value as YAML to support array string values

[mark-hofmeijer]

What was changed

This PR adds support for array strings as annotations and labels.

Why?

Annotations and labels with array string as value (e.g. ad.datadoghq.com/temporal-web.logs: '[{"source":"temporal","service":"temporal-web"}]') results in an error, both on installation and upgrade.

Error message:
Error: UPGRADE FAILED: cannot patch "temporal-admintools" with kind Deployment: "" is invalid: patch: Invalid value: "{...}": json: cannot unmarshal array into Go struct field ObjectMeta.spec.template.metadata.annotations of type string

Checklist

1. How was this tested:
   Automated.

Or manual via:
helm install -f values.yaml --set web.podAnnotations.arrayannotation='[{"test":"true"}]' debug . --dry-run --debug

2. Any docs updates needed?
   No.

[mark-hofmeijer]

@robholland Can you take a look at this one too? Although the latests PRs add support for "normal" string/integer/boolean values, it does not work for strings with arrays in it. This PR fixes this (and is eventually what I need :-)). Thanks!

[stevengubler]

+1. We ran into this issue as well on the latest releases. Version 0.48.0 still respects structured data as annotations, so we've pinned the helm release to it as a temporary fix.

[mark-hofmeijer]

@robholland Do you have time to give your review on this PR? Many thanks!