chore(deps): update newrelic/infrastructure-k8s docker tag to v2.13.15

Author: renovate[bot]

charts/newrelic-infra-operator/values.yaml

@@ -140,7 +140,7 @@ config:
       # @default -- See `values.yaml`
       image:
         repository: newrelic/infrastructure-k8s
-        tag: 2.13.14-unprivileged
+        tag: 2.13.15-unprivileged
         pullPolicy: IfNotPresent
 
       # -- configSelectors is the way to configure resource requirements and extra envVars of the injected sidecar container.