[BUILD BRANCH] Use the refs/tags/${CI_COMMIT_TAG}

* When a tag occurs the repo tool use the reference to the tag instead
of the head of the MASTER_BRANCH

manifest-pipeline-yocto.yml

@@ -192,10 +192,11 @@ retrigger:
       - BUILD_BRANCH=${MASTER_BRANCH}
       - |
          if [ ${CI_PIPELINE_SOURCE} == "pipeline" ]; then
-            BUILD_BRANCH="${CI_COMMIT_REF_NAME}"
-         fi
-         if [ ${CI_PIPELINE_SOURCE} == "schedule" ]; then
-            BUILD_BRANCH="${CI_COMMIT_BRANCH}"
+              BUILD_BRANCH="${CI_COMMIT_REF_NAME}"
+         elif [ ${CI_PIPELINE_SOURCE} == "schedule" ]; then
+              BUILD_BRANCH="${CI_COMMIT_BRANCH}"
+         elif [ ! -z ${CI_COMMIT_TAG} ];
+              BUILD_BRANCH="refs/tags/${CI_COMMIT_TAG}"
          fi
          echo "This is the manifest repository URL used for the build: ${CI_REPOSITORY_URL}"
          echo "This is the manifest branch used for the build: ${BUILD_BRANCH}"