chore: [dialogflow-cx] update typescript gapic generator to 4.8.1

packages/google-cloud-dialogflow-cx/README.md

@@ -44,7 +44,7 @@ Google APIs Client Libraries, in [Client Libraries Explained][explained].
 1.  [Select or create a Cloud Platform project][projects].
 1.  [Enable billing for your project][billing].
 1.  [Enable the Dialogflow CX API API][enable_api].
-1.  [Set up authentication][auth] so you can access the
+1.  [Set up authentication with a service account][auth] so you can access the
     API from your local workstation.
 
 ### Installing the client library
@@ -456,4 +456,4 @@ See [LICENSE](https://github.com/googleapis/google-cloud-node/blob/main/LICENSE)
 [projects]: https://console.cloud.google.com/project
 [billing]: https://support.google.com/cloud/answer/6293499#enable-billing
 [enable_api]: https://console.cloud.google.com/flows/enableapi?apiid=dialogflow.googleapis.com
-[auth]: https://cloud.google.com/docs/authentication/external/set-up-adc-local
+[auth]: https://cloud.google.com/docs/authentication/getting-started

packages/google-cloud-dialogflow-cx/protos/google/cloud/dialogflow/cx/v3beta1/tool.proto

@@ -437,7 +437,7 @@ message Tool {
     }
 
     // Required. The full resource name of the referenced Integration Connectors
-    // Connection. Format: 'projects/*/locations/*/connections/*'
+    // Connection. Format: `projects/*/locations/*/connections/*`
     string name = 1 [(google.api.field_behavior) = REQUIRED];
 
     // Required. Actions for the tool to use.
@@ -593,11 +593,14 @@ message Tool {
       // is empty or unspecified, Dialogflow will use Google's default trust
       // store to verify certificates. N.B. Make sure the HTTPS server
       // certificates are signed with "subject alt name". For instance a
-      // certificate can be self-signed using the following command,
+      // certificate can be self-signed using the following command:
+      //
+      // ```
       //    openssl x509 -req -days 200 -in example.com.csr \
       //      -signkey example.com.key \
       //      -out example.com.crt \
       //      -extfile <(printf "\nsubjectAltName='DNS:www.example.com'")
+      // ```
       bytes cert = 2 [(google.api.field_behavior) = REQUIRED];
     }