Update common.txt (#1956) (#1963)

Add missing modelscope package - `VLLM_USE_MODELSCOPE` env doesn't work
without it.

Signed-off-by: Artur Fierka <[email protected]>

Author: afierka-intel

requirements/common.txt

@@ -48,3 +48,4 @@ opentelemetry-sdk>=1.26.0  # vllm.tracing
 opentelemetry-api>=1.26.0  # vllm.tracing
 opentelemetry-exporter-otlp>=1.26.0  # vllm.tracing
 opentelemetry-semantic-conventions-ai>=0.4.1  # vllm.tracing
+modelscope  # required to support VLLM_USE_MODELSCOPE env