Update of the gitlab-ci script: change the docker image and use the new gRaySoftware error code

.gitlab-ci.yml

-image: gitlab-registry.in2p3.fr/ipnl_gamma/ganpro:latest
+image: gitlab-registry.in2p3.fr/ipnl_gamma/docker_gamma:latest
 
 stages:
     - build
@@ -13,30 +13,23 @@ compile:
     - mkdir AgataSoftware
     - cd AgataSoftware
     - git clone https://gitlab.in2p3.fr/IPNL_GAMMA/scripts.git
-    - (exit `python scripts/gRaySoftware.py --adf=origin/preprod all | grep "recipe for target" | grep failed | wc -l`)
-    - (exit `python scripts/gRaySoftware.py --mfm= all | grep "recipe for target" | grep failed | wc -l`)
+    - python scripts/gRaySoftware.py --adf=origin/preprod all
+    - python scripts/gRaySoftware.py --mfm= all
     - cp -r ../narval_emulator ./agapro
     - echo "Compilation without ROOT..." 
-    - (exit `python scripts/gRaySoftware.py --agapro= conf compile install | grep "recipe for target" | grep failed | wc -l`)
+    - python scripts/gRaySoftware.py --agapro= conf compile install
     - export ROOTSYS=/opt/root/
     - export PATH=$ROOTSYS/bin/:$PATH
     - export LD_LIBRARY_PATH=$ROOTSYS/lib/:$LD_LIBRARY_PATH
     - echo "Compilation with ROOT..." 
-    - (exit `python scripts/gRaySoftware.py --agapro= conf compile install | grep "recipe for target" | grep failed | wc -l`)
+    - python scripts/gRaySoftware.py --agapro= conf compile install
     - cd agapro/
     - mkdir -p cppcheck_output
     - cppcheck --xml --xml-version=2 --enable=style,performance,portability,unusedFunction -i AGATREE -i PRISMA -i cmake -i config -i zPrograms -i zUseful . 2> cppcheck_output/output.xml
     - cp -r cppcheck_output ../../narval_emulator/
-#    - cd doxyfiles/
-#    - rm -rf doc
-#    - doxygen Doxyfile.in
-#    - cd doc
-#    - tar -czf doxygen.tgz html
-#    - cp doxygen.tgz ../../../../narval_emulator/ 
   artifacts:
      paths:
        - ./cppcheck_output/output.xml
-#       - ./doxygen.tgz
 
 sonar:
   stage: publish