Kraan does not recognize healthCheckExprs on HelmRelease kind

[kishoregv]

Is your feature request related to a problem? Please describe.
Kraan fails to parse and validate healthCheckExprs fields on HelmRelease objects. When a HelmRelease specifies CEL-based custom health check expressions, kraan does not recognize the
field because the fluxcd/helm-controller/api dependency is pinned at v1.1.0, which predates the introduction of healthCheckExprs in the HelmRelease spec.

Expected Behavior:

Kraan should correctly parse HelmRelease objects that include spec.healthCheckExprs and properly evaluate layer health status based on these CEL expressions.

Root Cause:

The github.com/fluxcd/helm-controller/api Go module at v1.1.0 does not include the healthCheckExprs field in its HelmRelease type definition. This field was introduced in
helm-controller v1.5.0 as part of the Helm v4 upgrade.

Describe the solution you'd like

Bump the following dependencies:

• github.com/fluxcd/helm-controller/api v1.1.0 → v1.5.4
• github.com/fluxcd/source-controller/api v1.4.1 → v1.8.3
• github.com/fluxcd/pkg/apis/meta v1.25.1 → v1.26.0
• Chart image tags: helm-controller v1.5.3 → v1.5.4, source-controller v1.8.1 → v1.8.3

Bugs Fixed by helm-controller v1.5.3 → v1.5.4

v1.5.4

• Fix post-renderer conflict of overlapping hooks and templates (#1461) — resolves issues where charts with both hooks and templates sharing resource names would conflict during
  post-rendering
• Ignore force-replace when server-side apply is enabled (#1456) — prevents invalid force-replace operations under SSA
• Preserve line endings in SplitManifests — fixes downstream YAML parser issues