Update docker-authorization.md to use new plugin version

Updated docs to reflect the updated plugin version in order to run the examples

Signed-off-by: denis-accesa <128355301+denis-accesa@users.noreply.github.com>

docs/content/docker-authorization.md

@@ -111,15 +111,15 @@ sudo mv config.yaml /etc/docker/config/
 Install the `opa-docker-authz` plugin and point it to the config file just created.
 
 ```shell
-docker plugin install openpolicyagent/opa-docker-authz-v2:0.8 opa-args="-config-file /opa/config/config.yaml"
+docker plugin install openpolicyagent/opa-docker-authz-v2:0.9 opa-args="-config-file /opa/config/config.yaml"
 ```
 
 You need to configure the Docker daemon to use the plugin for authorization.
 
 ```shell
 cat > /etc/docker/daemon.json <<EOF
 {
-    "authorization-plugins": ["openpolicyagent/opa-docker-authz-v2:0.8"]
+    "authorization-plugins": ["openpolicyagent/opa-docker-authz-v2:0.9"]
 }
 EOF
 ```