feat(docker): updated installation of sdk via dockerfile

Author: kingsodigie

docker/Dockerfile

@@ -3,16 +3,16 @@ FROM python:3-slim
 
 #Install Git
 RUN apt-get update && \
-    apt-get install -y --no-install-recommends git && \
+    apt list -a git &&  \
+    apt-get install -y --no-install-recommends git=1:2.20.1-2 && \
     apt-get clean && \
     rm -rf /var/lib/apt/lists/*
 
 #Clone SDK repo to app directory
 RUN git clone https://github.com/watson-developer-cloud/python-sdk.git
 
 #Install the SDK
-RUN pip install --upgrade ibm-watson
-
+RUN pip install --upgrade ibm-watson==3.2.0
 # #Set working directory to python-sdk
 WORKDIR /python-sdk