dbcsr_tensor_unittest fails with CCE 10

[shoshijak]

Since about around PR #370 , the CI test dbcsr_tensor_unittest fails with a segfault, when compiled with the Cray compiler.

I've run tests and could determine that the fail is caused by CSCS upgrading the Cray compiler (in terms of module names, from cce/9.0.2 to cce/10.0.2), and not by a change in DBCSR's code base.

[alazzaro]

Good spot, I will fix it. Thanks!