chore(ci): Ignore hadolint DL3006

> Always tag the version of an image explicitly

Hadolint is unaware that the final FROM image is based on one of the two FROM's above, both of which are tagged. Therefore this is a false positive.

Dockerfile

@@ -18,6 +18,9 @@ FROM cm2network/steamcmd:root as base-amd64
 FROM --platform=arm64 sonroyaalmerol/steamcmd-arm64:latest as base-arm64
 
 ARG TARGETARCH
+# Ignoring the lack of a tag here because the tag is defined in the above FROM lines
+# and hadolint isn't aware of those.
+# hadolint ignore=DL3006
 FROM base-${TARGETARCH}
 
 LABEL maintainer="[email protected]" \