Release v1.15.0: Improve Code Quality Control and Rename Python Backends

This release is build after integrating pre-commit to help avoid easily fixable mistakes. One such fix includes the renaming of the Qiskit python backends to include Backend to distinguish from the cpp bindings to the simulators. For users of DDSIMProvider nothing should change, otherwise the imports may have to be updated.

What's Changed

• Introduce pre-commit for MQT DDSIM by @hillmich in #187
• ⬆️ Bump extern/cxxopts from 4a3d4db to 58daccc by @dependabot in #188
• ⬆️ Bump extern/cxxopts from 58daccc to c12ce65 by @dependabot in #189

Full Changelog: v1.14.0...v1.15.0