[None][fix] add readme copy to wheel stage to avoid setup.py failure (cherry-pick #8736) (#8754)

Signed-off-by: Faraz Khoubsirat <[email protected]>
Co-authored-by: Faraz <[email protected]>

Author: ZhanruiSunCh

docker/Dockerfile.multi

@@ -127,7 +127,7 @@ COPY cpp cpp
 COPY scripts scripts
 COPY tensorrt_llm tensorrt_llm
 COPY 3rdparty 3rdparty
-COPY .gitmodules setup.py requirements.txt requirements-dev.txt constraints.txt ./
+COPY .gitmodules setup.py requirements.txt requirements-dev.txt constraints.txt README.md ./
 
 # Create cache directories for pip and ccache
 RUN mkdir -p /root/.cache/pip /root/.cache/ccache