Fix EntraApplication resource issues

[jemrobinson]

✅ Checklist

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🚦 Depends on

⤴️ Summary

• Application operations were caching the authentication token which was getting stale. This caused resource operations to fail
• Switch to using an updated token (and not storing it in the props)
• Overwrite an existing secret if it exists
• Some logging fixes to help with debugging

🌂 Related issues

Closes #1814
Closes #1903

🔬 Tests

Deployed a new SRE

[github-actions]

Coverage report

Click to see where and how coverage changed

File	Statements	Missing	Coverage	Coverage (new stmts)	Lines missing
data_safe_haven/external/api
graph_api.py					282-288, 309, 803, 810
data_safe_haven/infrastructure
project_manager.py					140, 232, 332, 351, 366, 380
data_safe_haven/infrastructure/components/dynamic
dsh_resource_provider.py
entra_application.py					37-38, 44, 70, 126, 141
file_share_file.py
ssl_certificate.py
Project Total

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

[JimMadge]

LGTM