Fix order of operations in Dockerfile

sync/Dockerfile

@@ -4,10 +4,10 @@ WORKDIR /workdir
 
 RUN apt-get update && apt-get install -y python3-pip
 
-COPY resolve-deps.sh .
-COPY generate-gradle.py .
 COPY requirements.txt .
-
 RUN python3 -m pip install -r requirements.txt
 
+COPY resolve-deps.sh .
+COPY generate-gradle.py .
+
 CMD [ "./resolve-deps.sh" ]