add retry for download lcov failed (#29789)

tools/coverage/paddle_coverage.sh

@@ -19,7 +19,7 @@ set -xe
 PADDLE_ROOT="$( cd "$( dirname "${BASH_SOURCE[0]}")/../../" && pwd )"
 
 # install lcov
-curl -o /lcov-1.14.tar.gz -x "" -s https://paddle-ci.gz.bcebos.com/coverage/lcov-1.14.tar.gz || exit 101
+curl -o /lcov-1.14.tar.gz --connect-timeout 600 --retry 10 --retry-delay 10 -x "" -s https://paddle-ci.gz.bcebos.com/coverage/lcov-1.14.tar.gz || exit 101
 tar -xf /lcov-1.14.tar.gz -C /
 cd /lcov-1.14
 make install