Incorrect Future Dates in README News Section

[50HJ]

Description

The README file contains news sections with dates from the future (2025), which is obviously incorrect and confusing to users.

Steps to Reproduce

Check the news section in README.md:

## 📰 News
- **[2025.04.07]** We released the inference pipeline and some weights of RelaCtrl-PixArt.
- **[2025.02.21]** We have released our paper [RelaCtrl](https://arxiv.org/pdf/2502.14377) and created a dedicated [project homepage](https://360cvgroup.github.io/RelaCtrl/).

Proposed Solution

Update the dates to their correct values (likely 2024 instead of 2025):

## 📰 News
- **[2024.04.07]** We released the inference pipeline and some weights of RelaCtrl-PixArt.
- **[2024.02.21]** We have released our paper [RelaCtrl](https://arxiv.org/pdf/2502.14377) and created a dedicated [project homepage](https://360cvgroup.github.io/RelaCtrl/).