Merge v5.3.1 into develop

[jemrobinson]

✅ Checklist

• You have given your pull request a meaningful title (e.g. Enable foobar integration rather than 515 foobar).
• You are targeting the appropriate branch. If you're not certain which one this is, it should be develop.
• Your branch is up-to-date with the target branch (it probably was when you started, but it may have changed since then).

🚦 Depends on

n/a

⤴️ Summary

Merge changes from 5.3.1. back into develop

🌂 Related issues

Closes #2383

🔬 Tests

n/a

[github-actions]

Coverage report

Click to see where and how coverage changed

File	Statements	Missing	Coverage	Coverage (new stmts)	Lines missing
data_safe_haven
version.py
data_safe_haven/external/api
azure_sdk.py					939, 1208
data_safe_haven/infrastructure/components/dynamic
ssl_certificate.py					66, 101, 124-126, 159, 174-179, 188-198
Project Total

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