Update Helm release argo-cd to v8.3.4

This MR contains the following updates:

Package	Update	Change
argo-cd	patch	8.3.3 -> 8.3.4
ironbank/big-bang/argocd	minor	3.1.1 -> 3.1.3
gluon	minor	0.7.0 -> 0.8.4

Complete MR checklist

Assignee

• Followed upgrade instructions outlined in docs/DEVELOPMENT_MAINTENANCE.md
• Update Docs with new/updated steps as needed
• Tested and Validated Changes made with supporting info like logs or screenshots from test pipelines

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• Tested and Validated changes

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Upgrade Notices

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