pysteps v1.21.4

What's Changed

• Fix issue with external ensemble nowcast for steps blending and no additional noise by @mats-knmi in #564
• Fix boxplot labels for Matplotlib 3.11 by @dnerini in #567
• Fix external nowcast only zeros by @mats-knmi in #566
• Fix TypeError when timesteps list has a gap in blending.steps.forecast by @Yuxiang-Ren-HUB in #560
• fix issue with linear blending by @mats-knmi in #569
• bump version by @mats-knmi in #568

New Contributors

• @Yuxiang-Ren-HUB made their first contribution in #560

Full Changelog: v1.21.3...v1.21.4