Release v0.5.7 

Gateway release v0.3.0 

chore: bump SGLang version to 0.5.6.post2 (sgl-project#14858) Co-authored-by: sglang-bot <sglang-bot@users.noreply.github.com>

Gateway release v-0.2.4 

Bump up diffusers to latest official release version (sgl-project#14670) 

chore: bump SGLang version to 0.5.6 (sgl-project#14316) Co-authored-by: sglang-bot <sglang-bot@users.noreply.github.com>

chore: bump SGLang version to 0.5.5.post3 (sgl-project#13366) 

[model-gateway] smg release 0.2.3 (sgl-project#13312) 

chore: bump SGLang version to 0.5.5.post2 (sgl-project#13129) Include the critical fix sgl-project#12915.

chore: bump SGLang version to 0.5.5.post1 (sgl-project#13000)