MINIFICPP-2644 Add proxy controller service support for GCP processors

[lordgamez]

https://issues.apache.org/jira/browse/MINIFICPP-2644

Depends on

• MINIFICPP-2644 Add proxy controller service support for AWS and Azure processors #2045

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[Copilot]

Pull request overview

This pull request adds proxy controller service support to GCP processors (PutGCSObject, FetchGCSObject, ListGCSBucket, and DeleteGCSObject). The implementation follows the same pattern used in AWS and Azure processors by adding a "Proxy Configuration Service" property that accepts a ProxyConfigurationServiceInterface controller service.

Changes:

• Added proxy configuration support to the base GCSProcessor class
• Added integration tests for proxy functionality using HTTP and HTTPS proxy types
• Updated processor documentation to include the new proxy configuration property
• Improved container deployment logic to prevent redeployment of already-deployed containers

Reviewed changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated 6 comments.

Show a summary per file

File	Description
extensions/gcp/processors/GCSProcessor.h	Added ProxyConfigurationService property definition and proxy_ member variable to support proxy configuration
extensions/gcp/processors/GCSProcessor.cpp	Implemented proxy configuration parsing in onSchedule() and proxy application in getClient()
extensions/gcp/tests/features/google_cloud_storage.feature	Added integration test scenarios for PutGCSObject, FetchGCSObject, ListGCSBucket, and DeleteGCSObject with HTTP and HTTPS proxy support; changed "When the MiNiFi instance starts up" to "When all instances start up" for consistency
PROCESSORS.md	Updated documentation for DeleteGCSObject, FetchGCSObject, ListGCSBucket, and PutGCSObject to include the new Proxy Configuration Service property
behave_framework/src/minifi_test_framework/containers/container.py	Added is_deployed() method and check to prevent redeployment of already-deployed containers

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