Update quay.io/brancz/kube-rbac-proxy Docker tag to v0.19.0 (#474)

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

Author: renovate[bot]

config/monitoring/sharding-exporter/deployment.yaml

@@ -41,7 +41,7 @@ spec:
         - --secure-listen-address=:8443
         - --tls-cipher-suites=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305
         - --upstream=http://127.0.0.1:8081/
-        image: quay.io/brancz/kube-rbac-proxy:v0.18.2
+        image: quay.io/brancz/kube-rbac-proxy:v0.19.0
         name: kube-rbac-proxy-main
         ports:
         - containerPort: 8443
@@ -66,7 +66,7 @@ spec:
         - --secure-listen-address=:9443
         - --tls-cipher-suites=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305
         - --upstream=http://127.0.0.1:8082/
-        image: quay.io/brancz/kube-rbac-proxy:v0.18.2
+        image: quay.io/brancz/kube-rbac-proxy:v0.19.0
         name: kube-rbac-proxy-self
         ports:
         - containerPort: 9443