chore: bumped to 0.7.4

[eschmidt42]

This pull request updates the version number for both the Rust and Python packages to prepare for a new release. There are no other changes included.

• Version bump:
  • Updated the version in Cargo.toml from 0.7.3 to 0.7.4 for the Rust crate.
  • Updated the version in pyproject.toml from 0.7.3 to 0.7.4 for the Python package.