Fixed path to the sample test program to build

.travis.yml

@@ -40,7 +40,6 @@ matrix:
 
 before_install: |
   if [[ "$TRAVIS_OS_NAME" == "linux" ]]; then
-    set -x
     sudo apt-get install apt-transport-https ca-certificates dirmngr
     sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv E0C56BD4
     echo "deb https://repo.clickhouse.tech/deb/stable/ main/" | sudo tee \
@@ -60,5 +59,5 @@ script: |
   if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then ./ut/clickhouse-cpp-ut --gtest_filter=-"Client/*:*Performance*" ; fi
   # Test clients that do not have absl in the system still can be built
   cmake --build . --target install . && cmake --build . --target clean
-  cd ./tests/simple && mkdir build && cd ./build
+  cd ../tests/simple && mkdir build && cd ./build
   cmake .. -DBUILD_SAMPLE_WITH_INT128=ON -DCMAKE_CXX_STANDARD=17 -DCMAKE_CXX_STANDARD_REQUIRED=ON && cmake --build . --target all