fix(ci): run e2e group by resource api group

[ronething]

Type of change:

• Bugfix
• New feature provided
• Improve performance
• Backport patches
• Documentation
• Refactor
• Chore
• CI/CD or Tests

What this PR does / why we need it:

Pre-submission checklist:

• Did you explain what problem does this PR solve? Or what new features have been added?
• Have you added corresponding test cases?
• Have you modified the corresponding document?
• Is this PR backward compatible? If it is not backward compatible, please discuss on the mailing list first

[Copilot]

Pull Request Overview

This PR updates the CI setup for end-to-end tests by grouping tests using new label filters and enhancing logging output in the ADC executor.

• Added label filters to Describe blocks in various e2e test files.
• Updated the Makefile and GitHub workflows to support label filtering.
• Modified output handling in the ADC executor and removed obsolete RBAC configuration files.

Reviewed Changes

Copilot reviewed 20 out of 20 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
test/e2e/*	Added Label() to Describe calls to enable filtering by API groups.
internal/provider/adc/executor.go	Revised ADC output processing for improved debug logging.
config/rbac/*	Removed obsolete RBAC files for gatewayproxy roles.
Makefile & GitHub workflows	Updated commands to include label filtering for tests.
test/e2e/gatewayapi/gatewayclass.go	Introduced GatewayClass tests (with naming inconsistencies).

Comments suppressed due to low confidence (2)

test/e2e/gatewayapi/gatewayclass.go:35

• The variable name 'defautlGatewayClass' appears to be misspelled; consider renaming it to 'defaultGatewayClass' for clarity.

		var defautlGatewayClass = `

test/e2e/gatewayapi/gatewayclass.go:48

• The resource name 'apisix-not-accepeted' seems to have a typo; consider correcting it to 'apisix-not-accepted' to avoid confusion.

  name: apisix-not-accepeted