Release v0.5.4

Fixed

• 0fd292c - The EqM loss was using a hardcoded target (x0 - x1) * c(t), which is only correct for the Linear interpolant. Changed the target to -ut * ct, which correctly uses each interpolant's velocity schedule.
• 1c6741d - update tensor dimensionality checks to require length >= 2

Other

• ffab8d7 - update installation command for testing package to include development dependencies
• 793a2c4 - update .gitignore and improve Equilibrium Matching loss documentation
• b102503 - enhance documentation for Equilibrium Matching and add integration tests for single-step scenarios
• a2218e5 - add LLM documentation generation and update workflows