fix: install pip explicitly (#280)

Author: matifali

images/base/ubuntu.Dockerfile

@@ -5,18 +5,18 @@ ENV DEBIAN_FRONTEND=noninteractive
 
 # Install the Docker apt repository
 RUN apt-get update && \
-    apt-get upgrade --yes && \
-    apt-get install --yes ca-certificates && \
+    apt-get upgrade --yes --no-install-recommends --no-install-suggests && \
+    apt-get install --yes --no-install-recommends --no-install-suggests \
+    ca-certificates && \
     rm -rf /var/lib/apt/lists/*
 COPY docker-archive-keyring.gpg /usr/share/keyrings/docker-archive-keyring.gpg
 COPY docker.list /etc/apt/sources.list.d/docker.list
 
 # Install baseline packages
 RUN apt-get update && \
-    apt-get install --yes \
+    apt-get install --yes --no-install-recommends --no-install-suggests \
     bash \
     build-essential \
-    ca-certificates \
     containerd.io \
     curl \
     docker-ce \
@@ -28,6 +28,8 @@ RUN apt-get update && \
     locales \
     man \
     pipx \
+    python3 \
+    python3-pip \
     software-properties-common \
     sudo \
     systemd \