build(deps): Bump helm.sh/helm/v3 in the gomod group (#765)

Bumps the gomod group with 1 update: [helm.sh/helm/v3](https://github.com/helm/helm).


Updates `helm.sh/helm/v3` from 3.18.5 to 3.18.6
- [Release notes](https://github.com/helm/helm/releases)
- [Commits](https://github.com/helm/helm/compare/v3.18.5...v3.18.6)

---
updated-dependencies:
- dependency-name: helm.sh/helm/v3
  dependency-version: 3.18.6
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: gomod
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

go.mod

@@ -14,7 +14,7 @@ require (
 	github.com/spf13/viper v1.20.1
 	github.com/stretchr/testify v1.10.0
 	gopkg.in/yaml.v2 v2.4.0
-	helm.sh/helm/v3 v3.18.5
+	helm.sh/helm/v3 v3.18.6
 )
 
 require (

go.sum

@@ -95,5 +95,5 @@ gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=
 gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
-helm.sh/helm/v3 v3.18.5 h1:Cc3Z5vd6kDrZq9wO9KxKLNEickiTho6/H/dBNRVSos4=
-helm.sh/helm/v3 v3.18.5/go.mod h1:L/dXDR2r539oPlFP1PJqKAC1CUgqHJDLkxKpDGrWnyg=
+helm.sh/helm/v3 v3.18.6 h1:S/2CqcYnNfLckkHLI0VgQbxgcDaU3N4A/46E3n9wSNY=
+helm.sh/helm/v3 v3.18.6/go.mod h1:L/dXDR2r539oPlFP1PJqKAC1CUgqHJDLkxKpDGrWnyg=