feat(charts): update helm release metrics-server to v3.12.0 (#2591)

Signed-off-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

helm-dependencies.yaml

@@ -78,7 +78,7 @@ dependencies:
     version: 6.15.5
     repository: https://grafana.github.io/helm-charts
   - name: metrics-server
-    version: 3.11.0
+    version: 3.12.0
     repository: https://kubernetes-sigs.github.io/metrics-server/
   - name: node-problem-detector
     version: 2.3.12