chore: use adc dump instead of apisixCli

[ronething]

In order to adapt to both apisix-standalone and api7ee modes, use adc dump instead of apisixCli

[github-actions]

conformance test report

apiVersion: gateway.networking.k8s.io/v1
date: "2025-06-09T02:53:33Z"
gatewayAPIChannel: standard
gatewayAPIVersion: v1.2.0
implementation:
  contact: null
  organization: APISIX
  project: apisix-ingress-controller
  url: https://github.com/apache/apisix-ingress-controller.git
  version: v2.0.0
kind: ConformanceReport
mode: default
profiles:
- core:
    result: partial
    skippedTests:
    - HTTPRouteHTTPSListener
    statistics:
      Failed: 0
      Passed: 32
      Skipped: 1
  name: GATEWAY-HTTP
  summary: Core tests partially succeeded with 1 test skips.

[Copilot]

Pull Request Overview

This PR adapts the test framework to support both apisix-standalone and api7ee modes by replacing the use of the apisixCli with an ADC dump mechanism.

• Removed references to the apisixCli and its associated client methods.
• Introduced a new ADC-based dataplane resource interface and its implementation in adc.go.
• Updated deployers, tests, manifests, Dockerfile, and workflow steps to align with the new ADC dump approach.

Reviewed Changes

Copilot reviewed 10 out of 10 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
test/e2e/scaffold/scaffold.go	Removed outdated apisixCli code and used the new Deployer interface for dataplane resources.
test/e2e/scaffold/deployer.go	Extended the Deployer interface with a DefaultDataplaneResource method.
test/e2e/scaffold/apisix_deployer.go	Updated createAdminTunnel and integrated the admin tunnel into the ADC logic.
test/e2e/scaffold/api7_deployer.go	Removed legacy client initialization and added ADC dump-based DefaultDataplaneResource.
test/e2e/scaffold/adc.go	Added new ADC dump-based dataplane resource implementation.
test/e2e/ingress/ingress.go & gatewayapi/gateway.go	Modified TLS assertions to use the new Certificates field.
test/e2e/framework/manifests/apisix-standalone.yaml	Adjusted deployment configuration to match the new ADC requirements.
Dockerfile.dev & .github/workflows/e2e-test.yml	Updated ADC_COMMIT and added steps to build/extract the ADC binary.