fix(webkit): 204 response is not a failure

[yury-s]

The login being changed was added in #1260 and is supposed to only work for navigation requests.

Reference: #32752

[github-actions]

Test results for "tests 1"

3 failed
❌ [playwright-test] › playwright.ct-dev-server.spec.ts:21:5 › should run dev-server and use it for tests
❌ [installation tests] › playwright-packages-install-behavior.spec.ts:66:5 › playwright should work
❌ [webkit-codegen-mode-trace] › library/inspector/cli-codegen-2.spec.ts:408:7 › cli codegen › click should emit events in order

5 flaky

⚠️ [chromium-library] › library/trace-viewer.spec.ts:256:1 › should have network requests
⚠️ [playwright-test] › ui-mode-test-progress.spec.ts:22:5 › should update trace live
⚠️ [chromium] › components/splitView.spec.tsx:35:5 › should render sidebar first
⚠️ [webkit-library] › library/video.spec.ts:165:5 › screencast › should work with old options
⚠️ [webkit-page] › page/page-goto.spec.ts:312:3 › should fail when navigating to bad SSL after redirects

36321 passed, 747 skipped
✔️✔️✔️

Merge workflow run.