monitoring update to 56.2.1-bb.0

Package Merge Request

Package Changes

• Updated Monitoring chart from 56.0.3-bb.0 to 56.2.1-bb.0
• registry1.dso.mil/ironbank/big-bang/grafana/grafana-plugins 10.2.3 -> 10.3.1
• registry1.dso.mil/ironbank/opensource/prometheus-operator/prometheus-config-reloader 0.71.0 -> v0.71.2
• registry1.dso.mil/ironbank/opensource/prometheus-operator/prometheus-operator v0.71.0 -> v0.71.2
• registry1.dso.mil/ironbank/opensource/prometheus-operator/prometheus-operator 0.71.0 -> v0.71.2

Package MR

big-bang/product/packages/monitoring!256 (merged)

For Issue

Closes big-bang/product/packages/monitoring#153 (closed)

Upgrade Notices

(Include any relevant notes about upgrades here or write "N/A" if there are none)