Updating Stunnel to Stunnel5 in Dockerfile.

Dockerfile

@@ -28,7 +28,7 @@ ENV EFS_CLIENT_SOURCE=$client_source
 
 RUN OS=${TARGETOS} ARCH=${TARGETARCH} make $TARGETOS/$TARGETARCH
 
-FROM public.ecr.aws/eks-distro-build-tooling/python:3.9-gcc-al23 as rpm-provider
+FROM public.ecr.aws/eks-distro-build-tooling/eks-distro-minimal-base-python-builder:3.9.14-al2 as rpm-provider
 
 # Install efs-utils from github by default. It can be overriden to `yum` with --build-arg when building the Docker image.
 # If value of `EFSUTILSSOURCE` build arg is overriden with `yum`, docker will install efs-utils from Amazon Linux 2's yum repo.
@@ -55,7 +55,7 @@ RUN mkdir -p /tmp/rpms && \
 RUN pip3 install --user botocore
 
 # This image is equivalent to the eks-distro-minimal-base-python image but with pip installed as well
-FROM public.ecr.aws/eks-distro-build-tooling/eks-distro-minimal-base-python-builder:3.9.16-al23 as rpm-installer
+FROM public.ecr.aws/eks-distro-build-tooling/eks-distro-minimal-base-python-builder:3.9.14-al2 as rpm-installer
 
 COPY --from=rpm-provider /tmp/rpms/* /tmp/download/
 
@@ -77,7 +77,7 @@ RUN clean_install amazon-efs-utils true && \
         /usr/bin/openssl \
         /usr/bin/sed \
         /usr/bin/stat \
-        /usr/bin/stunnel \
+        /usr/bin/stunnel5 \
         /usr/sbin/tcpdump \
         /usr/bin/which && \
     cleanup "efs-csi"