[CI]install python_library_into_ci_image (#56252)

* install python_library_into_ci_image

* install python libraries into image

* install python libraries into image

* install library into image

tools/dockerfile/Dockerfile.ubuntu20

@@ -145,10 +145,16 @@ RUN pip3.7 --no-cache-dir install pre-commit==2.17.0 pylint==2.12.0 && \
     pip3.10 --no-cache-dir install cpplint==1.6.0 clang-format==13.0.0
 
 COPY ./python/requirements.txt /root/
+COPY ./python/unittest_py/requirements.txt /home/
 RUN pip3.7 --no-cache-dir install -r /root/requirements.txt && \
+    pip3.7 --no-cache-dir install -r /home/requirements.txt && \
     pip3.8 --no-cache-dir install -r /root/requirements.txt && \
+    pip3.8 --no-cache-dir install -r /home/requirements.txt && \
     pip3.9 --no-cache-dir install -r /root/requirements.txt && \
-    pip3.10 --no-cache-dir install -r /root/requirements.txt
+    pip3.9 --no-cache-dir install -r /home/requirements.txt && \
+    pip3.10 --no-cache-dir install -r /root/requirements.txt && \
+    pip3.10 --no-cache-dir install -r /home/requirements.txt
+
 
 # ccache 4.2.0
 RUN wget -q https://paddle-ci.gz.bcebos.com/ccache-4.8.2.tar.gz && \