ci: install Buildah network helpers in runner [CI]

packaging/container/Woodpecker.Agent.Containerfile

@@ -7,7 +7,7 @@ FROM ${NATIVEAOT_BUILDER_IMAGE}
 # Installed once when this image changes, never in a pipeline step.
 RUN apt-get update \
     && apt-get install -y --no-install-recommends \
-      buildah fuse-overlayfs uidmap runc python3 git git-lfs openssh-client \
+      buildah netavark aardvark-dns fuse-overlayfs uidmap runc python3 git git-lfs openssh-client \
       curl ca-certificates openssl util-linux binutils xz-utils unzip make \
       clang lld zlib1g-dev libssl-dev \
     && rm -rf /var/lib/apt/lists/*