message: add missing clang in amdci config
diff: @@ -343,6 +343,8 @@ build/amd/clang/hip/release/static:
  image: localhost:5000/gko-amd-gnu7-llvm60
  variables:
  <<: *default_variables
  + C_COMPILER: clang
  + CXX_COMPILER: clang++
  BUILD_OMP: "ON"
  BUILD_HIP: "ON"
  BUILD_TYPE: Release
  