feat(redis): add python-is-python3

Author: Greelan

apps/redis/Dockerfile

@@ -14,7 +14,7 @@ RUN         set -eux; \
             apt-get update; \ 
             apt-get install -o APT::Keep-Downloaded-Packages="false" -y --no-install-recommends \
                 ca-certificates wget dpkg-dev gcc g++ libc6-dev libssl-dev make git cmake python3 \
-                python3-pip python3-venv python3-dev unzip rsync clang automake autoconf libtool pkg-config; \
+                python3-pip python3-venv python3-dev python-is-python3 unzip rsync clang automake autoconf libtool pkg-config; \
             curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs \
             | sh -s -- -y --no-modify-path --profile minimal --default-toolchain stable; \
             /usr/local/cargo/bin/rustup default stable; \