refactor: awscli -> s5cmd, add alpine 323

jenkins/Dockerfile

@@ -4,8 +4,11 @@ ARG JENKINS_UID=386
 ARG JENKINS_GID=386
 ARG DOCKER_GID=999
 
-RUN apt-get update -qq && apt-get install -y python-pip
-RUN pip install awscli
+RUN apt-get update -qq && apt-get install -y curl
+
+# Install s5cmd for S3 uploads (much faster than AWS CLI)
+RUN ARCH=$(uname -m); if [ "$ARCH" = "x86_64" ]; then S5CMD_ARCH="64bit"; else S5CMD_ARCH="arm64"; fi && \
+    curl -sL "https://github.com/peak/s5cmd/releases/download/v2.3.0/s5cmd_2.3.0_Linux-${S5CMD_ARCH}.tar.gz" | tar xz -C /usr/local/bin s5cmd
 
 # install docker cli
 RUN wget -q -O /tmp/docker-cli.deb https://download.docker.com/linux/debian/dists/stretch/pool/stable/$(dpkg --print-architecture)/docker-ce-cli_18.09.2~3-0~debian-stretch_$(dpkg --print-architecture).deb \