build: update README for deprecation notice (#2531)

* build: update README for deprecation notice

* Update README.md

Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>

* 🦉 Updates from OwlBot post-processor

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

* 🦉 Updates from OwlBot post-processor

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

---------

Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com>
Co-authored-by: Owl Bot <gcf-owl-bot[bot]@users.noreply.github.com>

Author: 3 people

.github/release-trigger.yml

@@ -1,2 +1,2 @@
 enabled: true
-multiScmName: nodejs-spanner
+multiScmName: nodejs-spanner

.github/sync-repo-settings.yaml

@@ -7,19 +7,13 @@ branchProtectionRules:
     requiredStatusCheckContexts:
       - "ci/kokoro: Samples test"
       - "ci/kokoro: System test"
-      - "ci/kokoro: System test with Regular Sessions"
       - lint
       - test (18)
       - test (20)
       - test (22)
       - cla/google
       - windows
       - OwlBot Post Processor
-      - Build with Airlock
 permissionRules:
-  - team: yoshi-admins
-    permission: admin
-  - team: jsteam-admins
-    permission: admin
-  - team: jsteam
+  - team: cloud-sdk-nodejs-team
     permission: push

.kokoro/samples-test.sh

@@ -1,3 +1,5 @@
+**_THIS REPOSITORY IS DEPRECATED. ALL OF ITS CONTENT AND HISTORY HAS BEEN MOVED TO [GOOGLE-CLOUD-NODE](https://github.com/googleapis/google-cloud-node/tree/main/packages/handwritten)_**
+
 [//]: # "This README.md file is auto-generated, all changes to this file will be lost."
 [//]: # "To regenerate it, use `python -m synthtool`."
 <img src="https://avatars2.githubusercontent.com/u/2810941?v=3&s=96" alt="Google Cloud Platform logo" title="Google Cloud Platform" align="right" height="96" width="96"/>

.kokoro/trampoline_v2.sh

@@ -1,6 +1,6 @@
-# Copyright 2021 Google LLC
+# Copyright 2022 Google LLC
 #
-# Licensed under the Apache License, Version 2.0 (the "License");
+# 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
 #
@@ -11,62 +11,7 @@
 # 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.
-
-import synthtool as s
-import synthtool.gcp as gcp
 import synthtool.languages.node as node
-import logging
-from pathlib import Path
-from synthtool import _tracked_paths
-from synthtool import shell
-import shutil
-
-staging = Path("owl-bot-staging")
-
-if staging.is_dir():
-    logging.info(f"Copying files from staging directory ${staging}.")
-
-    # nodejs-spanner is composed of 3 APIs: SpannerClient, SpannerAdminDatabase and
-    # SpannerAdminInstance, all 3 are exported in src/v1/index.js
-    # Excluding auto-generated system test since Spanner has its own packing test
-    excludes=["src/index.ts", "src/v1/index.ts", "README.md", "package.json",
-            "system-test/*", "system-test/fixtures/sample/*", "system-test/fixtures/sample/src/*",
-            "tsconfig.json"]
-
-    # Copy spanner library.
-    for version in ['v1']:
-        library = staging / version
-        _tracked_paths.add(library)
-        s.copy([library], excludes=excludes)
-
-    excludes += ["webpack.config.js", ".jsdoc.js"]
-
-    # Copy the admin/database library.
-    for version in ['v1']:
-        library = staging / 'admin' / 'database' / version
-        _tracked_paths.add(library)
-        s.copy([library], excludes=excludes)
-
-    # Copy the admin/instance library.
-    for version in ['v1']:
-        library = staging / 'admin' / 'instance' / version
-        _tracked_paths.add(library)
-        s.copy([library], excludes=excludes)
-
-    # Copy the spanner/executor library.
-    for version in ['v1']:
-        library = staging / 'executor' / version
-        _tracked_paths.add(library)
-        s.copy([library], excludes=excludes)
-
-    # The staging directory should never be merged into the main branch.
-    shutil.rmtree(staging)
-
-common_templates = gcp.CommonTemplates()
-templates = common_templates.node_library(source_location='build/src')
-s.copy(templates, excludes=[".kokoro/samples-test.sh", ".kokoro/trampoline_v2.sh", ".github/release-trigger.yml", ".github/sync-repo-settings.yaml"])
-
-node.postprocess_gapic_library_hermetic()
-
-# Remove generated samples from veneer library:
-shell.run(('rm', '-rf', 'samples/generated'), hide_output = False)
+node.owlbot_main(templates_excludes=[
+'README.md'
+])