Update registry1.dso.mil/ironbank/opensource/grafana/grafana Docker tag to v9.3.4

This MR contains the following updates:

Package	Type	Update	Change
registry1.dso.mil/ironbank/opensource/grafana/grafana	ironbank-base	patch	9.3.2 -> 9.3.4
registry1.dso.mil/ironbank/opensource/grafana/grafana		patch	9.3.2 -> 9.3.4
registry1.dso.mil/ironbank/opensource/grafana/grafana	final	patch	9.3.2 -> 9.3.4

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