Add Direct VPC Egress support to modules/cloud-function-v2 (#3567)

Fixes #3561

tests/modules/cloud_function_v2/examples/direct-vpc-egress.yaml

@@ -0,0 +1,36 @@
+# 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.
+
+values:
+  module.cf_http.google_cloudfunctions2_function.function:
+    service_config:
+    - all_traffic_on_latest_revision: true
+      available_cpu: '0.166'
+      available_memory: 256M
+      binary_authorization_policy: null
+      direct_vpc_egress: VPC_EGRESS_ALL_TRAFFIC
+      direct_vpc_network_interface:
+      - network: projects/xxx/global/networks/aaa
+        subnetwork: subnet_self_link
+        tags:
+        - tag1
+        - tag2
+
+counts:
+  google_cloudfunctions2_function: 1
+  google_project_iam_member: 2
+  google_service_account: 1
+  google_storage_bucket_object: 1
+  modules: 1
+  resources: 5