fix(argocd-image-updater): Add new env to respect log level setting

[wd]

This is a follow-up PR for argoproj-labs/argocd-image-updater#904; that PR resolved the logs generated by the code in argo-image-updater repo. This PR aims to resolve the logs generated by https://github.com/argoproj/gitops-engine/blob/master/pkg/utils/tracing/logging.go#L43 as I mentioned in the description of that PR.

Checklist:

• I have bumped the chart version according to versioning
• I have updated the documentation according to documentation
• I have updated the chart changelog with all the changes that come with this pull request according to changelog.
• Any new values are backwards compatible and/or have sensible default.
• I have signed off all my commits as required by DCO.
• My build is green (troubleshooting builds).

[yu-croco]

Hi @wd , thank you for your PR.
argoproj-labs/argocd-image-updater#904 is merged into master but not released as a specific version, so we should wait for the release.
Also since argo-helm follows upstream's manifests, can you please make PR in upstream?
Ref: https://github.com/argoproj-labs/argocd-image-updater/tree/master/manifests

[wd]

ah, I used the helm chart myself. I don't realize they have the manifest. I'll create a PR for that manifest as well. thank you.

[wd]

Created the PR argoproj-labs/argocd-image-updater#913

update: the PR merged.

[wd]

hi @yu-croco I just realized that this PR doesn't depend on argoproj-labs/argocd-image-updater#904, it is the same change as PR argoproj-labs/argocd-image-updater#913.
I think it should be safe to merge this PR, what do you think?

[yu-croco]

@wd
The point is that we follow upstream's manifests.
argoproj-labs/argocd-image-updater#913 is merged into master but not released as specific version, so we wait for new version of argocd-image-updater. :)