WIP Use Pulumi to create Entra applications

[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

Replace creation of Entra applications through the SDK with creation through pulumi-azuread

🌂 Related issues

Closes #2215

🔬 Tests

Tested on a fresh SRE deployment

[github-actions]

Coverage report

Click to see where and how coverage changed

File	Statements	Missing	Coverage	Coverage (new stmts)	Lines missing
data_safe_haven/infrastructure/components/composite
entra_application.py					22-29, 54, 79, 103-149
data_safe_haven/infrastructure/components/dynamic
__init__.py
data_safe_haven/infrastructure/programs
declarative_sre.py					158
imperative_shm.py					163
data_safe_haven/infrastructure/programs/sre
entra.py					27-29, 42-46, 56-123
identity.py					39-40
remote_desktop.py					59-60
Project Total

This report was generated by python-coverage-comment-action