chore: fix generated release m2 settings content - attempt2 (#346)

Author: akerekes

.kokoro/release.sh

@@ -53,6 +53,7 @@ setup_environment_secrets
 # Pick the right package to release based on the Kokoro job name.
 cd ${KOKORO_ARTIFACTS_DIR}/github/functions-framework-java
 create_settings_xml_file "settings.xml"
+cat settings.xml
 echo "KOKORO_JOB_NAME=${KOKORO_JOB_NAME}"
 if [[ $KOKORO_JOB_NAME == *"function-maven-plugin"* ]]; then
   cd function-maven-plugin