Fix: karmada-metrics-adapter use the correct certificate when deployed via karmadactl

Signed-off-by: Khalil Santana <khalil@ksantana.net>

pkg/karmadactl/addons/metricsadapter/manifests.go

@@ -56,6 +56,8 @@ spec:
             - --authentication-kubeconfig=/etc/kubeconfig
             - --authorization-kubeconfig=/etc/kubeconfig
             - --client-ca-file=/etc/karmada/pki/ca.crt
+            - --tls-cert-file=/etc/karmada/pki/karmada.crt
+            - --tls-private-key-file=/etc/karmada/pki/karmada.key
             - --audit-log-path=-
             - --audit-log-maxage=0
             - --audit-log-maxbackup=0