Test fix: Update argocd and helm versions in validate_toolchain test

[varshab1210]

What type of PR is this?

/kind failing-test

What does this PR do / why we need it:

Updated helm and argocd version changes with 1.21.4 release

Have you updated the necessary documentation?

• Documentation update is required by this PR.
• Documentation has been updated.

Which issue(s) this PR fixes:

Fixes #?

Test acceptance criteria:

• Unit Test
• E2E Test

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[svghadi]

/lgtm
/approve

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: svghadi

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[openshift-ci]

New changes are detected. LGTM label has been removed.

[varshab1210]

/test v4.21-e2e

[svghadi]

Error: controllers/argocd/argocd.go:249:4: SA1019: (github.com/argoproj-labs/argocd-operator/api/v1beta1.ArgoCDSpec).Grafana is deprecated: Grafana defines the Grafana server options for ArgoCD. (staticcheck)
Grafana: getArgoGrafanaSpec(),

static check failure is already fixed in 1.21 branch:

gitops-operator/controllers/argocd/argocd.go

Line 249 in 9ecf42e

Grafana: getArgoGrafanaSpec(), //nolint:staticcheck // SA1019: Grafana is deprecated but still supported

Force merging inorder to avoid unnecessary CI runs again.