CI: build the vendore testings by default

cmake_modules/gitlab-ci-initial-cache.cmake

@@ -7,6 +7,7 @@ set(CMAKE_C_FLAGS "-Werror")
 option(MORSE_ENABLE_WARNING  "Enable warning messages"        ON)
 option(MORSE_ENABLE_COVERAGE "Enable flags for coverage test" ON)
 
+set(CHAMELEON_TESTINGS_VENDOR ON CACHE BOOL "")
 set(CMAKE_EXPORT_COMPILE_COMMANDS ON CACHE BOOL "")
 
 set(BLA_VENDOR "Generic" CACHE STRING "Set to one of the BLAS/LAPACK Vendors to search for BLAS only from the specified vendor.")