MAF-19232: refactor(e2e): Rename e2e workflows for inference performance and quality benchmarks

[ghost]

• actions에서 표시되는 이름 형식 통일
• 해당 action 이름과 파일 이름 동기화

[Copilot]

Pull request overview

This PR standardizes how GitHub Actions E2E workflows are displayed by aligning workflow name: values with their corresponding workflow filenames, and adjusts related job/display labels to match the new naming.

Changes:

• Renamed the Quality Benchmark workflow display name to e2e-quality-benchmark-p-cluster and standardized its summary messaging capitalization.
• Renamed the Inference Performance workflow display name to e2e-inference-perf-p-cluster, renamed the primary job id to inference-perf, and updated dependent needs/outputs references accordingly.
• Updated several user-facing labels (job names, step names, check name, artifact name, summary messages) to reflect the new “Inference Performance” naming.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
.github/workflows/e2e-quality-benchmark-p-cluster.yaml	Workflow display name aligned to filename; summary job name and messages standardized.
.github/workflows/e2e-inference-perf-p-cluster.yaml	Workflow display name aligned to filename; primary job id/name and downstream references renamed for inference performance E2E.