[GitLabCI] Update...

[GitLabCI] Update /data1/is156025/cm264821/workspace/dev_poc/aidge_packages/aidge/aidge/aidge_backend_cpu -> .

.gitlab/ci/build.gitlab-ci.yml

@@ -5,7 +5,7 @@ build:ubuntu_cpp:
   image: n2d2-ci/ubuntu20.04/cpu:latest
 
   script:
-    - INSTALL_PATH="$PWD/install_cpp"
+    - INSTALL_PATH="$CI_PROJECT_DIR/install_cpp"
     - mkdir -p $INSTALL_PATH
     - mkdir -p build_cpp