automation: fix dependencies on openSUSE Tumbleweed containers

Fix the build inside our openSUSE Tumbleweed container by using
adding libzstd headers. While there, remove the explicit dependency
for python and python3 as the respective -devel packages will pull
them in anyway.

Signed-off-by: Dario Faggioli <dfaggioli@suse.com>
Acked-by: Roger Pau Monné <roger.pau@citrix.com>

automation/build/suse/opensuse-tumbleweed.dockerfile

@@ -45,6 +45,7 @@ RUN zypper install -y --no-recommends \
         libtasn1-devel \
         libuuid-devel \
         libyajl-devel \
+        libzstd-devel \
         lzo-devel \
         make \
         nasm \
@@ -56,9 +57,7 @@ RUN zypper install -y --no-recommends \
         pandoc \
         patch \
         pkg-config \
-        python \
         python-devel \
-        python3 \
         python3-devel \
         systemd-devel \
         tar \