split out steamcmd to it's own image

Dockerfile

@@ -1,23 +1,4 @@
-FROM ubuntu:24.04
-ARG CACHEBUST
-
-RUN echo steam steam/question select "I AGREE" | debconf-set-selections \
-	&& echo steam steam/license note '' | debconf-set-selections \
-	&& apt-get -y update \
-	&& apt-get -y install software-properties-common \
-	&& add-apt-repository multiverse \
-	&& dpkg --add-architecture i386 \
-	&& apt-get update && DEBIAN_FRONTEND=noninteractive apt-get -y install libstdc++6 libcurl3-gnutls wget libncurses6 bzip2 unzip vim nano lib32gcc-s1 lib32stdc++6 steamcmd  \
-	&& apt-get install -y --no-install-recommends --no-install-suggests \
-		ca-certificates \
-		lib32z1 \
-		libncurses6:i386 \
-		libbz2-1.0:i386 \
-		libtinfo6:i386 \
-		libcurl3-gnutls:i386 \
-	&& apt-get clean && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/* \
-	&& useradd -m tf2 \
-	&& su tf2 -c '/usr/games/steamcmd +quit'
+FROM spiretf/docker-steamcmd
 
 USER tf2