ci: use versioned upload-artifact instead of master; bump codeql-action to v4; bump upload-artifact to v5

[richm]

use versioned upload-artifact instead of master

bump codeql-action from v3 to v4

bump upload-artifact from v4 to v5

[sourcery-ai]

Reviewer's guide (collapsed on small PRs)

Reviewer's Guide

This PR ensures CI workflows use fixed action versions by replacing master branch references with versioned tags and updating the Upload Artifact and CodeQL actions to their latest major releases.

File-Level Changes

Change	Details	Files
Pin upload-artifact action to v5	Replace actions/upload-artifact@master with actions/upload-artifact@v5 in build_docs.yml Replace actions/upload-artifact@master with actions/upload-artifact@v5 in test_converting_readme.yml	.github/workflows/build_docs.yml .github/workflows/test_converting_readme.yml
Upgrade CodeQL action to v4	Update actions/codeql-action@v3 to actions/codeql-action@v4 in the CodeQL analysis workflow	.github/workflows/codeql-analysis.yml

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