Update public.ecr.aws/artifacthub/ah Docker tag to v1.19.0

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
public.ecr.aws/artifacthub/ah (source)	container	minor	v1.17.0 -> v1.19.0

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Release Notes

artifacthub/hub (public.ecr.aws/artifacthub/ah)

### [`v1.19.0`](https://togithub.com/artifacthub/hub/releases/tag/v1.19.0): Artifact Hub v1.19.0 [Compare Source](https://togithub.com/artifacthub/hub/compare/v1.18.0...v1.19.0) Please see the [changelog](https://artifacthub.io/packages/helm/artifact-hub/artifact-hub?modal=changelog) for more details. ### [`v1.18.0`](https://togithub.com/artifacthub/hub/releases/tag/v1.18.0): Artifact Hub v1.18.0 [Compare Source](https://togithub.com/artifacthub/hub/compare/v1.17.0...v1.18.0) Please see the [changelog](https://artifacthub.io/packages/helm/artifact-hub/artifact-hub?modal=changelog) for more details.

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Configuration

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♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

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