[athreya-splunk]

Summary

Remediate the dependency findings in VULN-113682, VULN-118166, and VULN-113604:

• Upgrade sqlparse to 0.6.0.
• Upgrade anyio to 4.15.1 (the ticket's fixed version is 4.14.2).
• Raise the Django minimum to 5.2.17 in project and pre-commit requirements.

Validation

• uv lock --check passed.
• /Users/atkm/.local/bin/pre-commit run --all-files passed.
• Repo tests: 54 passed (48 non-Docker cases and all 10 package dependency cases with Docker access).