chore: [dlp] update generator version to newest release v4.12.0 (#8443)

* feat: Supporting SDP Batch Content
docs: A comment for field `participant_id` in message `.google.privacy.dlp.v2.ConversationMessage` is changed

PiperOrigin-RevId: 926837595

Source-Link: googleapis/googleapis@ee4a3e1

Source-Link: googleapis/googleapis-gen@9d72b61
Copy-Tag: eyJwIjoicGFja2FnZXMvZ29vZ2xlLXByaXZhY3ktZGxwLy5Pd2xCb3QueWFtbCIsImgiOiI5ZDcyYjYxNGNkM2M3N2NkMTcwMjk4MjlhMmU3MDc1NGZkN2M4Y2FmIn0=

* 🦉 Updates from OwlBot post-processor

See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md

* chore: update generator version to newest release v4.12.0

PiperOrigin-RevId: 928929299

Source-Link: googleapis/googleapis@05c4b6d

Source-Link: googleapis/googleapis-gen@0cbc8bf
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* 🦉 Updates from OwlBot post-processor

See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md

---------

Co-authored-by: Owl Bot <gcf-owl-bot[bot]@users.noreply.github.com>

Author: gcf-owl-bot[bot]

packages/google-privacy-dlp/.mocharc.js

@@ -0,0 +1,33 @@
+// Copyright 2026 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     https://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+// ** This file is automatically generated by gapic-generator-typescript. **
+// ** https://github.com/googleapis/gapic-generator-typescript **
+// ** All changes to this file may be overwritten. **
+
+const config = {
+  "enable-source-maps": true,
+  "throw-deprecation": true,
+  "timeout": 10000
+}
+if (process.env.MOCHA_THROW_DEPRECATION === 'false') {
+  delete config['throw-deprecation'];
+}
+if (process.env.MOCHA_REPORTER) {
+  config.reporter = process.env.MOCHA_REPORTER;
+}
+if (process.env.MOCHA_REPORTER_OUTPUT) {
+  config['reporter-option'] = `output=${process.env.MOCHA_REPORTER_OUTPUT}`;
+}
+module.exports = config

packages/google-privacy-dlp/README.md

@@ -115,7 +115,6 @@ Samples are in the [`samples/`][homepage_samples] directory. Each sample's `READ
 | update inspect template | [source code](https://github.com/googleapis/google-cloud-node/blob/main/packages/google-privacy-dlp/samples/generated/v2/dlp_service.update_inspect_template.js) |
 | update job trigger | [source code](https://github.com/googleapis/google-cloud-node/blob/main/packages/google-privacy-dlp/samples/generated/v2/dlp_service.update_job_trigger.js) |
 | update stored info type | [source code](https://github.com/googleapis/google-cloud-node/blob/main/packages/google-privacy-dlp/samples/generated/v2/dlp_service.update_stored_info_type.js) |
-| privacy | [source code](https://github.com/googleapis/google-cloud-node/blob/main/packages/google-privacy-dlp/samples/generated/v2/snippet_metadata_google.privacy.dlp.v2.json) |
 
 
 ## Supported Node.js Versions

packages/google-privacy-dlp/protos/google/privacy/dlp/v2/dlp.proto

@@ -1388,6 +1388,9 @@ message ContentItem {
     // It is assumed that all included messages are contiguous and ordered in
     // chronological order.
     Conversation conversation = 7;
+
+    // Represents a batch of items to inspect.
+    BatchContentItem batch_content_item = 8;
   }
 
   // User provided metadata for the content.
@@ -1434,14 +1437,30 @@ message ConversationMessage {
   MessageType message_type = 2;
 
   // Optional. The identifier of the participant,
-  // for example, 'test-user' or 'gemini'.
+  // for example 'test-user' or 'gemini'.
   // The participant ID can contain lowercase letters, numbers, and hyphens;
   // that is, it must match the regular expression:
   // `^[a-z]([a-z0-9-]{0,61}[a-z0-9])?$`.
   // The maximum length is 63 characters.
   string participant_id = 3;
 }
 
+// Represents a batch of content to inspect or redact.
+message BatchContentItem {
+  // Represents the batch to inspect or redact.
+  oneof batch {
+    // Optional. Represents a batch of string values to inspect or redact.
+    StringValueBatch string_value_batch = 1
+        [(google.api.field_behavior) = OPTIONAL];
+  }
+}
+
+// Represents a batch of string values to inspect or redact.
+message StringValueBatch {
+  // Optional. Represents string data to inspect or redact.
+  repeated string values = 1 [(google.api.field_behavior) = OPTIONAL];
+}
+
 // Structured content to inspect. Up to 50,000 `Value`s per request allowed. See
 // https://cloud.google.com/sensitive-data-protection/docs/inspecting-structured-text#inspecting_a_table
 // to learn more.
@@ -1608,6 +1627,9 @@ message ContentLocation {
 
     // Location within a conversation.
     ConversationLocation conversation_location = 10;
+
+    // Location within a batch of content.
+    BatchContentLocation batch_content_location = 11;
   }
 
   // Finding container modification timestamp, if applicable. For Cloud Storage,
@@ -1639,6 +1661,12 @@ message ConversationLocation {
   }
 }
 
+// Location within a batch of content.
+message BatchContentLocation {
+  // Matches an index of a batch item in the batch provided in the request.
+  int32 item_index = 1;
+}
+
 // Metadata Location
 message MetadataLocation {
   // Type of metadata containing the finding.