ci: start the bare-metal build before the jahia image pull

Author: GauBen

tests/ci.prestart.bare-metal.sh

@@ -1,20 +1,21 @@
 #!/bin/bash
-# Starts Jahia and the module build in the background, as early as possible in the job.
+# Starts the module build and Jahia in the background, as early as possible in the job.
 # ci.build.bare-metal.sh waits for the build.
 set -euo pipefail
 
 # Provides the compose variables, SUPER_USER_PASSWORD among them
 source ./set-env.sh
 
-docker compose up -d --renew-anon-volumes jahia < /dev/null
-
 mkdir -p artifacts
-# The build job runs the unit tests: `package` stops before the yarn tests, -DskipTests skips the
-# Java ones. javascript-create-module is not provisioned. The background process holds none of the
-# step's streams, so the step ends without waiting for it
+# The build is the longest step, so it starts before the Jahia image pull. The build job runs the
+# unit tests: `package` stops before the yarn tests, -DskipTests skips the Java ones.
+# javascript-create-module is not provisioned. The background process holds none of the step's
+# streams, so the step ends without waiting for it
 (
   set +e
   JAVA_HOME="$JAVA_HOME_17_X64" mvn -B -U -ntp -f ../pom.xml -s ../.github/maven.settings.xml \
     -pl '!javascript-create-module' -DskipTests clean package > artifacts/mvn.log 2>&1
   echo $? > artifacts/mvn.status
 ) < /dev/null > /dev/null 2>&1 &
+
+docker compose up -d --renew-anon-volumes jahia < /dev/null