fix: Project can now be used as a git submodule again

To be able to use mender-convert as a git submodule its version needs
passing in as the docker environment does not have access to the parent project
to be able to traverse to get latest tag information

This is a fix for a previous regression

Changelog: Project can now be used as a git submodule again
Ticket: #MEN-6305

Signed-off-by: Dell Green <dell.green@ideaworks.co.uk>

docker-mender-convert

@@ -52,6 +52,7 @@ docker run \
   -v /lib/modules:/lib/modules:ro \
   --env MENDER_ARTIFACT_NAME="${MENDER_ARTIFACT_NAME}" \
   --env MENDER_CONVERT_LOG_FILE=logs/"${LOG_FILE}" \
+  --env MENDER_CONVERT_VERSION=${GIT_PROVIDED_TAG_NAME} \
   "$IMAGE_NAME" "$@"
 
 exit_code=$?