v1.1.5

Added

• Integrated Deptry into the development chain:
  • Added Deptry to dev extras and a make deptry target.
  • Included Deptry in make check and CI (runs after installing dev deps).

Changed

• Removed unused runtime dependency google-auth-httplib2 (was not imported).

CI

• CI pipeline now runs Deptry to audit missing/obsolete dependencies.