[TD-4093]update python connector erver test

Jenkinsfile

@@ -94,6 +94,7 @@ def pre_test(){
     make > /dev/null
     make install > /dev/null
     cd ${WKC}/tests
+    pip3 install ${WKC}/src/connector/python/linux/python3/
     '''
     return 1
 }

tests/Jenkinsfile

@@ -21,6 +21,7 @@ def pre_test(){
     cmake .. > /dev/null
     make > /dev/null
     make install > /dev/null
+    pip3 install ${WKC}/src/connector/python/linux/python3/
     '''
     return 1
 }