Combined: WCAG a11y audit, Playwright E2E, Soroban deploy CI, OpenAPI 3.1/SDK (#1198 #1199 #1200 #1201) - #1409

Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/checkout@v4, github/codeql-action/analyze@v3, github/codeql-action/autobuild@v3, github/codeql-action/init@v3. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/

1 issue was detected with this workflow: CodeQL language 'javascript' is referenced by more than one entry in the 'language' matrix parameter for job 'codeql-analysis'. This may result in duplicate alerts. Please edit the 'language' matrix parameter to keep only one of the following: 'javascript', 'typescript'.