Raise minimum node version

[pamelafox]

Purpose

Current LTS version of Node is 22. This uses 22 for nvmrc and devcontainer.json, but runs tests against both 22 and 20, in case of developers running LTS-1.
Recommendation came from colleagues.

Does this introduce a breaking change?

When developers merge from main and run the server, azd up, or azd deploy, will this produce an error?
If you're not sure, try it out on an old environment.

[X] Yes - if they're using older Node, and it forces them to upgrade?
[ ] No

Does this require changes to learn.microsoft.com docs?

This repository is referenced by this tutorial
which includes deployment, settings and usage instructions. If text or screenshot need to change in the tutorial,
check the box below and notify the tutorial author. A Microsoft employee can do this for you if you're an external contributor.

[ ] Yes
[X] No

Type of change

[ ] Bugfix
[ ] Feature
[ ] Code style update (formatting, local variables)
[ ] Refactoring (no functional changes, no api changes)
[ ] Documentation content changes
[X] Other... Please describe:

Code quality checklist

See CONTRIBUTING.md for more details.

• The current tests all pass (python -m pytest).
• I added tests that prove my fix is effective or that my feature works
• I ran python -m pytest --cov to verify 100% coverage of added lines
• I ran python -m mypy to check for type errors
• I either used the pre-commit hooks or ran ruff and black manually on my code.

[github-actions]

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File Full Path	Issues
docs/deploy_troubleshooting.md	# Link Line Number 1 https://stackoverflow.com/questions/35569042/ssl-certificate-verify-failed-with-python3/43855394#43855394 11
docs/customization.md	# Link Line Number 1 https://github.com/Azure-Samples/azure-search-openai-demo/blob/main/app/backend/approaches/prompts/chat_query_rewrite.prompty 41 2 https://github.com/Azure-Samples/azure-search-openai-demo/blob/main/app/backend/approaches/prompts/chat_answer_question.prompty 43 3 https://github.com/Azure-Samples/azure-search-openai-demo/blob/main/app/backend/approaches/prompts/chat_query_rewrite.prompty 45 4 https://github.com/Azure-Samples/azure-search-openai-demo/blob/main/app/backend/approaches/prompts/chat_answer_question.prompty 45 5 https://github.com/Azure-Samples/azure-search-openai-demo/blob/main/app/backend/approaches/prompts/chat_answer_question_vision.prompty 55 6 https://github.com/Azure-Samples/azure-search-openai-demo/blob/main/app/backend/approaches/retrievethenread.py 59 7 https://github.com/Azure-Samples/azure-search-openai-demo/blob/main/app/backend/approaches/prompts/ask_answer_question.prompty 62 8 https://github.com/Azure-Samples/azure-search-openai-demo/blob/main/app/backend/approaches/prompts/ask_answer_question.prompty 64 9 https://github.com/Azure-Samples/azure-search-openai-demo/blob/main/app/backend/approaches/prompts/ask_answer_question_vision.prompty 73 10 https://github.com/Azure-Samples/azure-search-openai-demo/blob/main/app/backend/prepdocslib/searchmanager.py 173 11 https://github.com/Azure-Samples/azure-search-openai-demo/blob/main/app/backend/prepdocslib/searchmanager.py 174 12 https://github.com/Azure-Samples/azure-search-openai-demo/blob/main/app/backend/prepdocslib/textsplitter.py 176

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We have automatically detected the following broken URLs in your files. Review and fix the paths to resolve this issue.

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File Full Path	Issues
docs/deploy_troubleshooting.md	# Link Line Number 1 https://stackoverflow.com/questions/35569042/ssl-certificate-verify-failed-with-python3/43855394#43855394 11
docs/customization.md	# Link Line Number 1 https://github.com/Azure-Samples/azure-search-openai-demo/blob/main/app/backend/approaches/prompts/chat_query_rewrite.prompty 41 2 https://github.com/Azure-Samples/azure-search-openai-demo/blob/main/app/backend/approaches/prompts/chat_answer_question.prompty 43 3 https://github.com/Azure-Samples/azure-search-openai-demo/blob/main/app/backend/approaches/prompts/chat_query_rewrite.prompty 45 4 https://github.com/Azure-Samples/azure-search-openai-demo/blob/main/app/backend/approaches/prompts/chat_answer_question.prompty 45 5 https://github.com/Azure-Samples/azure-search-openai-demo/blob/main/app/backend/approaches/prompts/chat_answer_question_vision.prompty 55 6 https://github.com/Azure-Samples/azure-search-openai-demo/blob/main/app/backend/approaches/retrievethenread.py 59 7 https://github.com/Azure-Samples/azure-search-openai-demo/blob/main/app/backend/approaches/prompts/ask_answer_question.prompty 62 8 https://github.com/Azure-Samples/azure-search-openai-demo/blob/main/app/backend/approaches/prompts/ask_answer_question.prompty 64 9 https://github.com/Azure-Samples/azure-search-openai-demo/blob/main/app/backend/approaches/prompts/ask_answer_question_vision.prompty 73 10 https://github.com/Azure-Samples/azure-search-openai-demo/blob/main/app/backend/prepdocslib/searchmanager.py 173 11 https://github.com/Azure-Samples/azure-search-openai-demo/blob/main/app/backend/prepdocslib/searchmanager.py 174 12 https://github.com/Azure-Samples/azure-search-openai-demo/blob/main/app/backend/prepdocslib/textsplitter.py 176

[Copilot]

Pull Request Overview

This PR raises the minimum supported Node.js version from 18 to 20 and updates the test workflow to run against both Node 20 and Node 22.

• Update README.md to reflect the new Node.js version requirement
• Modify the GitHub Actions workflow to include a matrix for Node.js testing

Reviewed Changes

Copilot reviewed 2 out of 5 changed files in this pull request and generated no comments.

File	Description
README.md	Updated documentation to indicate Node.js 20+ requirement
.github/workflows/python-test.yaml	Extended test matrix to include Node.js 20 and 22, and updated the setup-node step accordingly

Files not reviewed (3)

• .devcontainer/devcontainer.json: Language not supported
• app/frontend/.nvmrc: Language not supported
• app/frontend/package.json: Language not supported

[github-actions]

Check Broken URLs

We have automatically detected the following broken URLs in your files. Review and fix the paths to resolve this issue.

Check the file paths and associated broken URLs inside them.
For more details, check our Contributing Guide.

File Full Path	Issues
docs/deploy_troubleshooting.md	# Link Line Number 1 https://stackoverflow.com/questions/35569042/ssl-certificate-verify-failed-with-python3/43855394#43855394 11