fix: migrate DC_VERSION to Dockerfile

.gitea/workflows/auto-release.yaml

@@ -26,8 +26,8 @@ jobs:
         run: |
           echo "changed=false" >> $GITHUB_OUTPUT
 
-          for file in Makefile; do
-            if git diff HEAD~1 HEAD -- "${file}" | grep --quiet '^[+-]DC_VERSION'; then
+          for file in Dockerfile; do
+            if git diff HEAD~1 HEAD -- "${file}" | grep --quiet '^[+-]ARG DC_VERSION'; then
               echo "DC_VERSION line changed."
               echo "changed=true" >> $GITHUB_OUTPUT
               break

Dockerfile

@@ -1,10 +1,9 @@
 FROM docker.io/library/ubuntu:24.04 AS download
 
-ARG DC_VERSION
+# renovate: datasource=github-releases depName=docker/compose
+ARG DC_VERSION=v5.0.0
 
 RUN NAME=docker-compose-$(uname | tr [:upper:] [:lower:])-$(uname -m); \
-    echo "${NAME}" && \
-    echo $(uname) && \
     apt update --yes && \
     apt install --yes curl && \
     curl \

Makefile

@@ -1,7 +1,3 @@
-# DC_VERSION
-# Only required to install a specify version
-DC_VERSION?=v5.0.0 # renovate: datasource=github-releases depName=docker/compose
-
 # CONTAINER_RUNTIME
 # The CONTAINER_RUNTIME variable will be used to specified the path to a container runtime. This is needed to start and
 # run a container image.
@@ -22,7 +18,6 @@ DC_IMAGE_FULLY_QUALIFIED=${DC_IMAGE_REGISTRY_NAME}/${DC_IMAGE_NAMESPACE}/${DC_IM
 PHONY:=container-image/build
 container-image/build:
 	${CONTAINER_RUNTIME} build \
-		--build-arg DC_VERSION=${DC_VERSION} \
 		--file Dockerfile \
 		--no-cache \
 		--pull \