Add clang and set --no-install-recommends

Signed-off-by: yubiuser <github@yubiuser.dev>

.devcontainer/Dockerfile

@@ -3,10 +3,11 @@ ARG ubuntu_version=24.04
 
 FROM ubuntu:${ubuntu_version}
 RUN apt-get update && \
-    apt-get install -y \
+    apt-get install --no-install-recommends -y \
                 build-essential \
                 ca-certificates \
                 cmake \
+                clang \
                 git \
                 nano\
                 openssh-server