Merge branch 'ci/keep_template_app_artifacts' into 'master'

ci: keep size.json artifacts from all template targets

See merge request espressif/esp-idf!23115

.gitlab/ci/build.yml

@@ -427,7 +427,7 @@ build_only_tools_test_apps:
   variables:
     LOG_PATH: "${CI_PROJECT_DIR}/log_template_app"
     BUILD_PATH: "${CI_PROJECT_DIR}/build_template_app"
-    BUILD_DIR: "@t/@w"
+    BUILD_DIR: "${BUILD_PATH}/@t/@w"
     BUILD_LOG_CMAKE: "${LOG_PATH}/cmake_@t_@w.txt"
     BUILD_COMMAND_ARGS: ""
   artifacts: