chore: allow docs warnings in more packages (#16716)

Renames the post-processing file, and adds more paths to it.

This file should be removed entirely once we've upgraded to a later
version of the GAPIC generator which fixes the warnings. See #15475 for
details on this work.

Author: jskeet

.librarian/generator-input/client-post-processing/allow-docs-warnings-for-google-shopping-merchant-accounts.yaml

@@ -0,0 +1,67 @@
+# Copyright 2025 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
+#
+#      http://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.
+description: Allow documentation warnings for google-shopping-merchant-accounts due to formatting issue in google/protobuf/empty.proto
+url: https://github.com/googleapis/gapic-generator-python/issues/2490
+# Note: having one replacement per package instead of just listing the paths
+# is annoying, but that's what synthtool expects and it's not worth fixing that
+# at this stage.
+replacements:
+  - paths: [
+      packages/google-cloud-compute/noxfile.py,
+    ]
+    before: '        "-W",  # warnings as errors\n'
+    after: ''
+    count: 1
+  - paths: [
+      packages/google-cloud-compute-v1beta/noxfile.py,
+    ]
+    before: '        "-W",  # warnings as errors\n'
+    after: ''
+    count: 1
+  - paths: [
+      packages/google-cloud-container/noxfile.py,
+    ]
+    before: '        "-W",  # warnings as errors\n'
+    after: ''
+    count: 1
+  - paths: [
+      packages/google-cloud-dataplex/noxfile.py,
+    ]
+    before: '        "-W",  # warnings as errors\n'
+    after: ''
+    count: 1
+  - paths: [
+      packages/google-cloud-dialogflow-cx/noxfile.py,
+    ]
+    before: '        "-W",  # warnings as errors\n'
+    after: ''
+    count: 1
+  - paths: [
+      packages/google-cloud-network-connectivity/noxfile.py,
+    ]
+    before: '        "-W",  # warnings as errors\n'
+    after: ''
+    count: 1
+  - paths: [
+      packages/google-cloud-recaptcha-enterprise/noxfile.py,
+    ]
+    before: '        "-W",  # warnings as errors\n'
+    after: ''
+    count: 1
+  - paths: [
+      packages/google-shopping-merchant-accounts/noxfile.py,
+    ]
+    before: '        "-W",  # warnings as errors\n'
+    after: ''
+    count: 1