Update MON and LCM Dockerfile to install ca-certificates in the appropriate docker layer

Change-Id: I5b60040f9b0afbde05309ea93aeb92d879d24591
Signed-off-by: garciadeblas <gerardo.garciadeblas@telefonica.com>

docker/LCM/Dockerfile

@@ -66,9 +66,9 @@ RUN pip3 install \
 FROM ubuntu:18.04
 
 RUN DEBIAN_FRONTEND=noninteractive apt-get --yes update && \
-    DEBIAN_FRONTEND=noninteractive apt-get --yes install python3-minimal=3.6.*
-
-RUN DEBIAN_FRONTEND=noninteractive apt-get --yes install ca-certificates
+    DEBIAN_FRONTEND=noninteractive apt-get --yes install \
+    python3-minimal=3.6.* \
+    ca-certificates
 
 COPY --from=INSTALL /usr/lib/python3/dist-packages /usr/lib/python3/dist-packages
 COPY --from=INSTALL /usr/local/lib/python3.6/dist-packages  /usr/local/lib/python3.6/dist-packages

docker/MON/Dockerfile

@@ -53,9 +53,8 @@ RUN pip3 install \
 FROM ubuntu:20.04 as FINAL
 
 RUN DEBIAN_FRONTEND=noninteractive apt-get --yes update && \
-    DEBIAN_FRONTEND=noninteractive apt-get --yes install python3-minimal=3.8.*
-
-RUN DEBIAN_FRONTEND=noninteractive apt-get --yes install \
+    DEBIAN_FRONTEND=noninteractive apt-get --yes install \
+    python3-minimal=3.8.* \
     ca-certificates
 
 COPY --from=INSTALL /usr/lib/python3/dist-packages /usr/lib/python3/dist-packages