begin prep for move to GitHub Container Registry

Start pinning Dockerfiles to specific releases / commits

docker/cyberchef/Dockerfile

@@ -13,7 +13,7 @@ RUN sed -i 's/dl-cdn/dl-2/g' /etc/apk/repositories && \
 #
 # Install CyberChef 
     cd /root && \
-    git clone https://github.com/gchq/cyberchef --depth=1 && \
+    git clone https://github.com/gchq/cyberchef -b v9.21.0 && \
     chown -R nobody:nobody cyberchef && \
     cd cyberchef && \
     npm install && \

docker/cyberchef/docker-compose.yml

@@ -14,5 +14,5 @@ services:
      - cyberchef_local
     ports:
      - "127.0.0.1:64299:8000"
-    image: "dtagdevsec/cyberchef:2006"
+    image: "ghcr.io/telekom-security/cyberchef:2006"
     read_only: true